Question

if sin theta=0.5 then find the values of sin3theta and cos3theta​

Answer 1

Answer:

sin theta = 0.5

sin theta = 1/2 (0.5 = 1/2)

sin 30° = 1/2

theta = 30°

now, sin³ 30° = (1/2)³

sin³ 30° = 1/8

and

cos³ 30° = (root 3/2)³

cos³ 30° = 3 root 3/8