Tuesday

January 27, 2015

January 27, 2015

Posted by **Amy** on Wednesday, February 16, 2011 at 10:51pm.

how to solve without a calculator.

Please write steps and explain

thank you

- trig -
**Amy**, Wednesday, February 16, 2011 at 10:59pmanswer is -1

**Answer this Question**

**Related Questions**

Trig Help! - Question: Trying to find cos π/12, if cos π/6 = square ...

Math - Evaluate *Note - We have to find the exact value of these. That I know to...

Math, please help - Which of the following are trigonometric identities? (Can be...

Math integrals - What is the indefinite integral of ∫ [sin (π/x)]/ x^...

Precalculus - Use one of the identities cos(t + 2πk) = cos t or sin(t + 2&#...

product of function - Given: f(x)=2 cos x and g(x)=sin x. Which of these ...

TRIGONOMETRY - Can you check my work, please? This is for a trig study guide for...

Math/Trig - How would I evaluate these trig functions without using a calculator...

trig - cosθ =5/13 with -π/2 < θ <0 find each of the ...

Precalc/Trig - Sorry there are quite a few problems, but I just need to know if ...