Find the exact value of sin(-165^circ ) by using a sum or difference formula. square

Name: find the exact value of sin(-165^circ ) by using a sum or difference formula. square
Brand: QuestionAI
Rating: 4.7 (275 reviews)

Question

Answer 1

To find the exact value of

, we can use the sum or difference formula for sine. Let's use the difference formula:

We can express

as

.So,

Using the difference formula with

and

:

We know that

and

.Therefore:

The exact value of

is

.

Question