SOLUTION: Please I need help Let f(x)=sin x, g(x)=cos x, and h(x)=2x Find the exact value of each expression. Do not use a calculator. ( a) g(5pi/6+pi/6)+g(5pi/6)+g(pi/6) (b)

Algebra ->  Trigonometry-basics -> SOLUTION: Please I need help Let f(x)=sin x, g(x)=cos x, and h(x)=2x Find the exact value of each expression. Do not use a calculator. ( a) g(5pi/6+pi/6)+g(5pi/6)+g(pi/6) (b)      Log On


   

Question 852883: Please I need help

Let f(x)=sin x, g(x)=cos x, and h(x)=2x
Find the exact value of each expression. Do not use a calculator.
(
a) g(5pi/6+pi/6)+g(5pi/6)+g(pi/6)


(b) h^(degree)f(11pi/4)


Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Find the exact value of each expression. Do not use a calculator.
(
a) g(5pi/6+pi/6)+g(5pi/6)+g(pi/6)
-----
g(pi) + g(pi)
-----
= 2g(pi)
Question: What is "g" ?
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(b) h^(degree)f(11pi/4)
Questions?
What is "h"?
Why does it have a power symbol on it?
Note: 11pi/4 = -pi/4
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Cheers,
Stan H.
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