# If #tanB=3# what is #sinB#?

##### 2 Answers

Dec 15, 2016

Assuming you want your answer without the use of a calculator,

#### Explanation:

But

Dec 15, 2016

We know that

So, the side opposite

We now find the length of the hypotenuse of the imaginary triangle:

We now apply the definition that

Therefore,

Hopefully this helps!