Question

sin©=4/5 then sin 3©​

Answer 1

Answer:

given sin©=4/5,

We know that,

sin 3©=3sin©-4sin^3©.

=3×4/5-4×(4/5)^3

=12/5-4×(64/125)

=12/5-256/125

=300-256/125

=44/125.