Question #538a5
1 Answer
Jan 27, 2018
Explanation:
The following equation
Isn't a valid identity,
you can check this by substitution of an appropriate value of
However, if you mean
It is a valid identity
We will use
#cos^2(x)+sin^2(x)=1# #cot(t)=cos(x)/sin(x)#
Look at work