+0

# tan(½x-20º)=1

+1
114
1

tan(½x-20º)=1

Guest May 4, 2017
Sort:

#1
+4710
+5

If you just want the answer for    $$\tan(\frac12x-20º)$$  in the first quadrant...

$$\tan(\frac12x-20º)=1\\~\\ \frac12x-20º=\arctan(1) \\~\\ \frac12x-20º=45º \\~\\ \frac12x=45º+20º \\~\\ \frac12x=65º \\~\\ x=65º*2\\~\\x=130º$$

If you want the general solution please say so

hectictar  May 4, 2017

### 3 Online Users

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details