# How do you find the exact value of cos(theta) if sin(theta)=-2/3?

##### 2 Answers

#### Answer:

cos

or it could be cos

#### Explanation:

Since sin

Drawing your right-angled triangle, place your

Now, if your triangle was in the third quadrant, you would have

cos

But if your triangle was in the fourth quadrant, you would have

cos

#### Answer:

#### Explanation:

But