Monday
September 22, 2014

Homework Help: math

Posted by briane on Monday, April 7, 2014 at 3:12pm.

if tan 2x= -b/a, pi/2 <=2x<=pi, then determine an expression for sinx cosx in terms of a and b.
*please show the calculation

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Trigonometry - Prove the following trigonometric identities. please give a ...
Trig........ - I need to prove that the following is true. Thanks (cosx / 1-sinx...
Math - Im really struggling with these proving identities problems can somebody ...
Math - Pre- Clac - Prove that each of these equations is an identity. A) (1 + ...
Pre-Calc - Trigonometric Identities Prove: (tanx + secx -1)/(tanx - secx + 1)= ...
Trigonometry Check - Simplify #3: [cosx-sin(90-x)sinx]/[cosx-cos(180-x)tanx] = [...
Trig....... - I need to prove that the following is true. Thanks (2tanx /1-tan^x...
Math - Verify the identity . (cscX-cotX)^2=1-cosX/1+cosX _______ sorry i cant ...
math - tanx+secx=2cosx (sinx/cosx)+ (1/cosx)=2cosx (sinx+1)/cosx =2cosx ...
Trigonometry. - ( tanx/1-cotx )+ (cotx/1-tanx)= (1+secxcscx) Good one! ...

Search
Members