Question

is sin^2 thetta = cos ^2 (90 - thetta) ​

Answer 1

Answer:

correct

Step-by-step explanation:

Let us use 'a' instead of 'theta'

We know that ,

sin a =cos (90-a)

S.O.B.S.

=>(sin a)^2=cos(90-a)^2

=>sin^2 a=cos^2(90-a)