Posted by **diego sanchez** on Wednesday, November 21, 2012 at 12:37am.

find all the values of X between 0 and 2π such that cos(3x-π/2) = -√3/2

- math -
**drwls**, Wednesday, November 21, 2012 at 1:01am
cos(3x- /2) = sin(3x)

(Check your trig identities)

3x = sin^-1(-3/2)

= 4 pi/3, 5 pi/3, 10 pi/3, 11 pi/3 etc

x = 4 pi/9 etc

## Answer this Question

## Related Questions

- trig - find all the values of X between 0 and 2π such that cos(3x-π/2...
- Math, please help - Which of the following are trigonometric identities? (Can be...
- 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...
- Trig - find all solutions to the equation √3 csc(2theta)=-2 Would the ...
- 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&#...
- Calculus - How do I find the critical values? y= 4/x + tan(πx/8) What I ...
- Precalc/Trig - Sorry there are quite a few problems, but I just need to know if ...
- Math - Find all the possible values of the expression. sin^-1 -(square root3/2) ...