Simplify(Multiple Choice)

Question

(1-csc^2 0)/(cot^2 0)

A.)-1
B.)1
C.)tan^2 0
D.)1/sin^4 0

Answer 1

Multiply numerator and demoninator by sin^2. This does not change the value.
You end up with

(sin^2 - 1)/cos^2 =
-cos^2 /cos^2 =
-1

No matter what the angle theta is