Here's the question you clicked on:
Diamondshines
AP Calculus question: How to solve this without a calculator Sin(arctan(3/4))?
\[\text{ Let } y=\arctan(\frac{3}{4}) => \tan(y)=\frac{3}{4} (=\frac{opposite}{adjacent} )\] Draw a right triangle.
Find the hyp of that triangle and then find sin(y) and you are done.
I got (3/5) hopefully that's the right answer! But thank you!
That actually is right.