Question

In this question,
sin-1(4/5) + sin-1(5/13) + sin-1(16/65) = pi/2
Instead of solving it straight away, I took the sin-1(16/65) term to the right hand side and thus proved that sin-1(4/5) + sin-1(5/13) = cos-1(16/65). Is it correct to do so? Will I be awarded marks if in case this question happens to appear in the exam?

Answer 1

Mark this answer as brainliest answer