Question

How do you evaluate `sin[arccos(-2/3)+arcsin(1/4)]`?

Answer 1

Find sin

Explanation:

Use calculator.

a. `cos x = 2/3 --> x = 48.19` deg

b.`sin y = 1/4 -> y = 14.48` deg

sin (x + y) = sin (48.19 + 14.48) = sin (62.67) = 0.89