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Advanced Math/Proving Trig Identities

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Expert: Sherman D. - 4/21/2009


Question
[sin^2 (A)/tan^2] +sin^2(A)

[csc(A)/cos(A)] +sec(A)

Answer
usually when we prove something, it has to be equal to something.

(sin(A)^2/tan(A)^2) + sin(A)^2
(sin(A)^2/(sin(A)^2/cos(A)^2)) + sin(A)^2
(sin(A)^2 * (cos(A)^2/sin(A)^2)) + sin(A)^2
cos(A)^2 + sin(A)^2
1

so

(sin(A)^2/tan(A)^2) + sin(A)^2 = 1

--------------------------------------------

(csc(A)/cos(A)) + sec(A)
(csc(A) * (1/cos(A))) + sec(A)
csc(A)sec(A) + sec(A)
sec(A)(csc(A) + 1)

not certain what you want this to be equal to.

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Sherman D.

Expertise

I can answer questions dealing in mathematics of all kinds except for Physics and Calculus, but i can answer questions in Pre-Calculus and Chemistry. I can also answer questions in Recipes of all kinds. I can find games cheats/walkthroughs, but i can`t find a specific game online or offline. I can also do history and recipes for alcoholic beverages.

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Mathematics, Recipes, History, and Games.

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High School graduated. I graduated with honors, and i was in Beta Club for a year and a half.

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Principle's list and A and B honor roll in high school only.

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