# Thread: Find the Three Trigonometric Funtions of the Angle by Applying Formulas

1. ## Find the Three Trigonometric Funtions of the Angle by Applying Formulas

The one I'm having trouble with is, $\displaystyle tan \theta \frac{4}{3}, \theta$ in quadrant $\displaystyle III$

I've solved $\displaystyle y=\sqrt{3},x=-1,$ and $\displaystyle r=2$

My problem is I can't put $\displaystyle \frac {\sqrt 3}{4}$ in to my calculator. I've tried $\displaystyle \frac {1.7321}{2}$, but I can't do decimals as fractions.

2. ## Re: Find the Three Trigonometric Funtions of the Angle by Applying Formulas

Originally Posted by Jarod_C
The one I'm having trouble with is, $\displaystyle tan \theta \frac{4}{3}, \theta$ in quadrant $\displaystyle III$
I've solved $\displaystyle y=\sqrt{3},x=-1,$ and $\displaystyle r=2$
My problem is I can't put $\displaystyle \frac {\sqrt 3}{4}$ in to my calculator. I've tried $\displaystyle \frac {1.7321}{2}$, but I can't do decimals as fractions.
I don't understand what you are doing.

If you are given that $\displaystyle \tan(\theta)= \frac{4}{3}$ then $\displaystyle \sin(\theta)= \frac{-4}{5}$ and $\displaystyle \cos(\theta)= \frac{-3}{5}$.

So where are you getting the other values?

3. ## Re: Find the Three Trigonometric Funtions of the Angle by Applying Formulas

LOL, I wrote down the problem above the one I was working on. HAHAHA. I've got to get back to class, but I'll be back when I get home. Thanks for helping anyway. Sorry about wasting your time.

Edit: I bumped up your thanks to LEET lol