determine-the-exact-value-of-the-following-expression-by-using-a-sum-or-differen

Question

Determine the exact value of the following expression by using a sum or difference identity:

sin 645°

Accepted Answer

-(√6 + √2)/4

Answer

(√6 - √2)/4

Answer

(√3)/4

Answer

-(√3 + √2)/2

Determine the exact value of the following expression by using a sum or difference identity:sin 645°