Find the exact value of tan theta given that sin theta = -15/17 and theta is in Quadrant III
+118723 Find the exact value of tan theta given that sin theta = -15/17 and theta is in Quadrant III
3rd quad so will be tan be pos or neg?
Draw a right angeld triangle.
theta is one of the acute angles.
put 15 an 17 on two sides to make sin theta=15/17 true
Find the third side using Pythagoras
Read tan theta off the triangle. Make sue you add the plus or the minus as needed.
