Question

if sin∝= 1/2 find the value of 3sin∝- 4sin^3

Answer 1

3(1/2) - 4(1/2)^3

3/2 - 1/2

1

Answer 2

Hi Friend !!!

Here is ur answer !!!

sin α = 1/2

sinα = sin 30°

then α = 30°

3 sin α - 4 sin³α

= 3/2 - 1/2

= 2/2

= 1


Hope it helps u :-)