## Diamondshines one year ago AP Calculus question: How to solve this without a calculator Sin(arctan(3/4))?

• This Question is Open
1. myininaya

$\text{ Let } y=\arctan(\frac{3}{4}) => \tan(y)=\frac{3}{4} (=\frac{opposite}{adjacent} )$ Draw a right triangle.

2. myininaya

Find the hyp of that triangle and then find sin(y) and you are done.

3. Diamondshines

I got (3/5) hopefully that's the right answer! But thank you!

4. myininaya

That actually is right.