Posted by **deepak** on Tuesday, May 24, 2011 at 4:51am.

if sin a=0.5 then find the value of cos3a

## Answer this Question

## Related Questions

- Mathematics - Trigonometric Identities - Let y represent theta Prove: 1 + 1/tan^...
- Mathematics - I need help finding the exact value of sin (a + b), given that sin...
- mathematics - give that sin( A + B )= 2cos(A - B ) and tan A = 1/3,Find the ...
- Mathematics - Find the maximum or minimum values of sin x+sin y+sin(x+y)
- mathematics - Given that Sin(A+B)=2Cos(A-B) and tan A = 1/3 , Find the exact ...
- MATHEMATICS - Given that Sin(A+B)=2Cos(A-B) and tan A = 1/3 , Find the exact ...
- mathematics - find the maximum value of √3 cosθ-sinθ.???
- Trig hep, please? Thank you! - 1. Find the exact value of sin(195(degrees)) 2. ...
- Trig functions - 1)Write the equation sin y= x in the form of an inverse ...
- MATH - 1.)Find the exact solution algebriacally, if possible: (PLEASE SHOW ALL ...