LHS: cos^2 A( 1+cot^2A)
=cos^2A(cosec^2A) ,1+cot^2A=cosec^2A
=cos^2A( 1/sin^2A)
=(cos^2A/ sin^2A)
=cot^2A
=RHS
Hope this can help.
It's the same as the 1st one
30 30 and 60 is the answer also i went in order
I'm pretty sure the answer is D.
Answer:
B=10
Step-by-step explanation:
worked it out on a graph on the internet
