Given that tan(a/2)=1 calculate sina and cosa.

# Given that tan(a/2)=1 calculate sina and cosa.

• MATH

Given that tan(a/2)=1 calculate sina and cosa.

tan(a/2) = 1 we knaoe that: sin a = 2tan (a/2)[1+tan(a/2)^2] = 2(1)/(1+1)= 2/2 = 1 ==> sina = 1 But cos^2 a + sin^2 a = 1 ==> cos a = sqrt(1-sin^2 a) = sqrt(1-1)=0…

• WHEN RAIN CLOUDS GATHER

is the traditional culture responsible for the backwardness of Golema Mmidi?its a debate topic

no it isn’t , im an african child and my culture is very similar and my village hasn’t changed . i would say that chief matenge would be the cause . Cultures never change they stay the same to…

• MATH

Determine the reminder of the division of polinomials P/Q P=(x+1)^10+(x+2)^10 Q=(x+1)(x+2)

P = (x+1)^10 + (x+2)^10 Q = (x+1(x+2) P = Q*G + R where R is the remainder Now let R be ax+b ==> P = Q*G + ax +b Let us substiute with Q;s zeros which are (-1 and -2) P(-1) = Q(-1)*G(-1) +…

• MATH

Prove that the graphs have a single common point f=2x^2-5x+10 f=x^2-11x+1

Both graph intersect when f1=f2 ==> 2x^2 – 5x + 10 = x^2 -11x + 1 Now group similar: ==> x^2 +6x +9 = 0 ==> (x+3)^2 = 0 The equatio has one solution: ==> x=-3 Now to determine y value ,…

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• SCIENCE

What are the other components of the reaction mixture from Part A that reacts with NaOH before…

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Typically “labor migration” means people are going to leave a country where work is not plentiful to go to a country where it is. This is the case right now in America – drawing large crowds of…

• MATH

Which is the value of the coefficient c if x1^3+x2^3=8 x^2-x-c=o

x1^3 + x2^3 = 8 x^2 – x -c = 0 We know thatL x1 + x2 = -b/a = 1 x1*x2 = c/a = c f(x1) = x1^2 -x1 -c = 0 Multiply by x1: ==> x1^3 – x1^2 -cx1 = 0………(1) f(x2) = x2^2 -x2-c = 0 Multiply by…

• MATH

Which is the value of the sum x1^3 + x2^3 if x1,x2 are solutions of the equation x^2-5x+6=0

f(x) = x^2 – 5x + 6 x1 and x2 are solution We need to determine the value of x1^3 + x2^3 From viete’s rule, we know that: x1+ x2 = -b/a = 5………(1) x1*x2 = c/a = 6………..(2) But f(x1) =…

• SCIENCE

Please explain the method(s) of community sewage disposal and treatment.Explain the sequences of…

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• MAJOR BARBARA

compare & contrast the social & moral values of undershaft & stephen in major…

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• MIDNIGHT’S CHILDREN

Please comment on the narrative technique of Midnight’s Children.

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• MATH

Verify if the number i/(i+1) is complex.

1/(i+1) Let us multiply and dibide by i-1 ==> 1/(i+1) [(i-1)/i-1] ==> (i-1)/(i-1)(i+1) = (i-1)/(i^2 – 1) But we know that i^2 = -1 ==? (i-1)/(-1-1) = (i-1)/ -2 ==> (1/2) – (1/2) i…

• LAW AND POLITICS

What are the pros and cons of compulsory voting?

The typical arguments for having compulsory voting are that voting is a civic duty and that it is important to have the voices of all people heard. In a democracy, people say, it is important for…

• CHOCOLAT

In Chocolat compare the views of Vianne and Reynaud for Armande’s birthday party. How they are…

As in everything else, Reynaud looks at Armande’s birthday party as a celebration of gluttony and indulgence. He believes it is a mistake – not only because the old woman is very old and sick -…

• CHOCOLAT

How does Vianne describe the connection between food and family, friends, or community?

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• HISTORY

What megafauna exsisted in North America prior to 11,000 b.c. ?This can be found in guns germs…

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• ARTS

Who influenced Usher, the singer, on his songs?

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• AS I LAY DYING

In your opinion, does Darl’s “clairvoyance” take away from the realistic aspect of the novel?…

This is an interesting question. I have always enjoyed and been intrigued by Darl’s character and his clairvoyance. I read it, ultimately, as a trait that sets him apart from everyone, not just the…

• MATH

The coordinates of P, Q & R are (6,-11), (k,-9) & (2k,-3) respectively. If gradient of…

P(6,-11) Q(k,-9) R(2k,-3) gradient of PQ = gradient of PR ==> (-9–11)/(k-6) = (-3–11)/(2k-6) ==> 2/(k-6) = 8/(2k-6) ==> 2/(k-6) = 4/(k-3) ==> corss multiply: ==> 2(k-3) = 4(k-6)…

• MATH

The gradient of the line joining the points (9,a) & (2a,1) is 2/a, where “a” Is not equal to…

We have the points: (9,a) and (2a, 1) The gradient of the line m = 2/a (a is not 0) m = (y2-y1)/(x2-x1) = (1-a)/(2a-9) = 2/a Cross multiply: ==> a(1-a) = 2(2a-9) Open brackets: ==? a – a^2…

• SCIENCE

What does condyle actually mean?I see them labeled in my anatomy book, but it does not talk about…

Bones articulate (form a joint) with others bones, (except the hyoid). Condyles are protuberences which are usually rounded, at the ends (epiphysis) of bones, especially long bones that help…

• THE SUN ALSO RISES

What is the relationship between Frances and Robert in Chapter 5-6 of The Sun Also Rises?

Robert feels like he “owes” Frances because she stuck by him when he was not so successful. She was involved in his failed attempt to be a magazine editor and when the magazine failed, it was she…

• THE SUN ALSO RISES

How does Brett’s revelation about San Sebastian affect Jake in Chapter 9 of The Sun Also…

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• THE SUN ALSO RISES

What are they looking for in Chapter 9 in The Sun Also Rises? What is the relationship of Jake to…

Several times in the novel, Jake admits to being raised Catholic but not being very religious. At one point in the story, he enters a church with Brett to pray and it is obvious that he is a lapsed…

• THE SUN ALSO RISES

In Chapters X and XI of The Sun Also Rises, compare Bill’s and Jake’s comments on their…

Since Bill isn’t a great talker nor is he a great observer, his comments about his surroundings compared to Jake’s, the narrator’s, comments not only seem paltry in quantity but are paltry in…

• THE SUN ALSO RISES

Contrast France and Spain in Chapters 10-11 of The Sun Also Rises.

Jake’s stay in Paris has become a lost life for him. Although he scorns the extravagance and decadence that surrounds him, he has been caught up in it nonetheless. The lure of the city nightlife…

• THE SUN ALSO RISES

Comment on Bill’s feelings about expatriates in chapter 12 of The Sun Also Rises: “touch with…

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• THE SUN ALSO RISES

In Chapter 12 of The Sun Also Rises, explain how Jake’s and Bill’s fishing trip is similar to…

Jake’s and Bill’s fishing trip serves as a true respite that is deliberately sandwiched between their daily “lost” lifestyle in Paris and the brutality and debauchery to come at the bullfights in…

• LAW AND POLITICS

Should compulsory voting be abolished in Australia?

In my opinion, yes it should. I am not Australian, but I do not believe that compulsory voting makes sense in any country. My reason for saying this is that people should really only vote if they…

• THE BOOK THIEF

In Zusak’s The Book Thief, Death says Liesel is a girl “with a mountain to climb.” What is her…

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• THE SUN ALSO RISES

Discuss aficion in Chapter 131. Discuss aficion. 2. How does Montoya treat aficions differently?…

According to Ernest Hemingway, Aficion means passion. An aficionado is one who is passionate about the bull-fights. Aficionado can, of course, be applied to anyone who is passionate about…

• SCIENCE

I KNOW FASCIITIS IS FLESH EATING DISEASE BUT, WHAT CAUSES FASCIITIS?

I believe the type of fasciitis that you are looking for is necrotizing fasciitis and it is caused by bacteria. There are many different kinds of bacteria that can be the cause of necrotizing…

• THE GLASS MENAGERIE

Why is a typewriter a better symbol (in The Glass Menagerie) than, say, a piano? After all, Laura…

I think that the typewriter and the typewriting classes are a good symbol for Laura because it shows both her mother’s attempts to normalize her and her rejection of them. Consider that Laura was…

• SOCIAL SCIENCES

What are the similarities between a class and caste system?

The class system is generally based on a person’s occupation, education, and wealth, while the caste system (most notably in India) is based on a person’s birth. They are both systems in which…

• GUNS, GERMS, AND STEEL

What are some points in Guns, Germs, and Steel that can be argued?

Really, you can argue just about any of the points other than the strictly factual ones such as how many of the largest seeded grasses were found in a given place. To me, the thing that is most…

• GRAMMAR

Should the “c” in calligrapher be capitalized?

No, the “c” in calligrapher should not be capitalized as it is a common noun rather than a proper one. Generally, professions are not capitalized, such as a doctor, nurse, or teacher; an exception…

• LAW AND POLITICS

A person placed an advertisement through the internet of a piece of property he wanted to sell, A…

Part of the law of contracts is offer, acceptance, contract (in writing and signed by both parties to the contract, with witnesses, and notarized). You mentioned in your comments that the “buyer…

• TO KILL A MOCKINGBIRD

If anyone can help, I was wondering where I could find a quote that describes the sense of…

There are numerous references to Maycomb’s close-knit community, but the first, and perhaps most relevant, example can be found in chapter 1. Much of the novel’s first chapter consists of a…

• JULIUS CAESAR

After Cassius and Brutus have met with Antony’s side in a parley, they go back to their own camp….

After the parley with Antony and Octavius, Cassius reveals two bits of irony. First, he reveals that it’s his birthday. Later, in scene three, he says, “This day I breathed first: time is come…

• JULIUS CAESAR

How does Brutus change his opinion about the need for Caesar’s death in Act 5 of Julius Caesar?

You must remember that the decision that Brutus makes to join the conspiracy is because he fears what will happen to the Roman Republic should Caesar be crowned and given total power. He is a good…

• JULIUS CAESAR

How have others characterized Antony in Julius Caesar?Antony doesn’t really figure until Act 3….

At the games which coincide with the Feast of Lupercal, audiences briefly meet Antony, who is a participant in these games and has a brief dialogue with Caesar. As Brutus and Cassius observe, a…

• MATH

find the length of the diagonal of the rectangle ABCD where A(1,2) B(1,5) C(3,5) D(3,2)

We have the rectangle ABCD A(1,2) B(1,5) C(3,5) D(3,2) Let us calculate lenghth and width: AB = sqrt(1-1)^2 – (5-2)^2] = sqrt3^2 = 3 BC = sqrt[(3-1)^2 + (5-5)^2] = sqrt2^2 = 2 CD = sqrt[(3-3)^2…

• JULIUS CAESAR

Explain how Brutus and Cassius respond to Antony in Act 3, Scene 1 of Julius Caesar.

Upon hearing of Caesar’s death, Antony requests to be allowed to speak to the conspirators so he might learn the reasons for the murder. Antony assures the conspirators that he does not doubt…

• JULIUS CAESAR

Why does Shakespeare use thunder and storm sounds to suggest cosmic disorder in Julius Caesar?

As is the case in many works of literature, Shakespeare natural occurrences such as thunder and lightning to predict or precede bad things–in this case, Caesar’s murder. To understand the…

• MATH

f(x) = (x+2)*ln x finf f'(1)

f(x) = (x+2) * ln x Let f(x) = u*v u= (x+2) ==> u’ = 1 v= ln x ==> v’ = 1/x f'(x) = u’v + uv’ = 1*lnx + (x+2)*(1/x) = ln x + 1 + 2/x f'(1) = ln 1 + 1 + 2/1 = 0 + 1 +…

• MATH

simplify : 1/sqrt2 + 5/4 + 7/2qrt2

(1/sqrt2) + (5/4) + (7/2sqrt2) we will use the common denominator 4sqrt2: ==> (1*4 + 5*sqrt2 + 7*2)/4sqrt2 ==> (4 + 5sqrt2 + 14)/4sqrt2 ==> (18 + 5sqrt2)/4sqrt2 ==> 4.5/sqrt2 + 5/4 =…

• MATH

log 3x + log 5 = log (x+7)

log 3x + log 5 = log (x+7) We know thatL log a + log b = log a*b ==> log 3x*5 = log (x+7) ==>log 15x = log (x+7) ==> 15x = x + 7 ==> 14 x = 7 ==> x= 7/14 = 1/2 ==> x = 1/2