Question #b46bf
1 Answer
Oct 20, 2016
Explanation:
Applying the double angle identity
#=1 -2(sin(arcsin(5/13))^2#
#=1 - 2(5/13)^2#
#=1-50/169#
#=119/169#
Applying the double angle identity
#=1 -2(sin(arcsin(5/13))^2#
#=1 - 2(5/13)^2#
#=1-50/169#
#=119/169#