Question #01154
1 Answer
Oct 24, 2016
#=(2csc(x))/(csc^2(x)-1)#
#=(2csc(x))/(cot^2(x))#
#=(2/sin(x))/(cos^2(x)/sin^2(x))#
#=(2/sin(x))/(cos^2(x)/sin^2(x))*(sin^2(x)/cos(x))/(sin^2(x)/cos(x))#
#=(2sin(x)/cos(x))/cos(x)#
#=(2tan(x))/cos(x)#
