Question

Prove that : sin⁡3θ/sin⁡θ - cos⁡3θ/cos⁡θ =2

Answer 1

Is this the equation?
\[\frac{sin*3*\theta}{sin*\theta}-\frac{cos*3*\theta}{cos*\theta}=2\]

Answer 2

From the left hand side
1) Make them have the same denominator
2/ Use sin (a-b) = sin a cos b- sin b cos a to manipulate the numerator
3/ Use sin 2a = 2 sina cos a to manipulate the denominator
4/ Cancel out and get the right hand side.
Work out and show your attempt, please.

Answer 3

i know the best way take a nap and refresh yourself then u will be able to study good

Answer 4

sin 3 theta=?