Question

AP Calculus question:
How to solve this without a calculator
Sin(arctan(3/4))?

Answer 1

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

Answer 2

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

Answer 3

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

Answer 4

That actually is right.