How do you simplify #tan theta + cos(-theta) + tan(-theta)#?
1 Answer
Apr 27, 2018
Explanation:
#-theta" is an angle in the fourth quadrant where"#
#costheta>0" and "tantheta<0#
#•color(white)(x)cos(-theta)=costheta" and "tan(-theta)=-tantheta#
#rArrcancel(tantheta)+costhetacancel(-tantheta)=costheta#
