Question

if cos x equal to root 3 by 2 then find the value of 3 sin x - 4 sin cube x

Answer 1

Answer:

cosx= root 3/2 then when

x=30⁰

3 sin 30-4sin³x

3×1/2-4×1/8

3/2-1/2

2/2

1

Answer 2

value of 3 sin x minus 4 sin x cube will be 1