Question #2bbce
1 Answer
May 19, 2016
Assuming
#=tan^2(x)+cot^2(x)tan^2(x)-1#
#=tan^2(x)+(cot(x)tan(x))^2-1#
#=tan^2(x)+1^2-1#
Assuming
#=tan^2(x)+cot^2(x)tan^2(x)-1#
#=tan^2(x)+(cot(x)tan(x))^2-1#
#=tan^2(x)+1^2-1#