Use the information given below to find tan(a+b).
12
COS = with a in quadrant I
13
3
tanſ = with ß in quadrant III
4'
Give the exact answer, not a decimal approximation.
![Use the information given below to find tanab 12 COS with a in quadrant I 13 3 tanſ with ß in quadrant III 4 Give the exact answer not a decimal approximation class=](https://us-static.z-dn.net/files/dd4/143d1ddf8649f44ad78d20db627f7972.png)