Question

rewrite expression sin x cos x

Answer 1

Rewrite how? Exactly what are you doing with this?

Answer 2

a possible answer: sin(2x)/2 since sin2x=2sinxcosx

Answer 3

use double angle property

Answer 4

Well, there you go... @barbillus hit the nail right on the head the first time around! Yay!

Answer 5

thank u

Answer 6

ur welcome:)

Answer 7

Did you understand how to solve this question @slurpyy ?

Answer 8

nope

Answer 9

I have three other questions . use the power reducing formula to rewrite the expresssion .

1) sin^4 2x
2) tan^2 2x cos^4 2x
3) sin^4 x cos^2 x

Answer 10

\[\sin x~.~\cos x\]
Can be rewritten in more than 1000 ways. But you've to use the double angle property here.

The double angle property for sine says:\[\sin \theta = 2~.~\sin \frac{\theta}{2}~.~\cos \frac{\theta}{2}\]\[\sin 2\theta\ = 2~.~\sin \theta~.~\cos \theta\]

Did you get this?

Can you use this, now, to rewrite the original expression? :)

Answer 11

thank u :)