Question

Cos^2 90°+cosec^2 90°- cot^2 45°=?

Answer 1

Answer:

0

Step-by-step explanation:

1. cos 90° is 0 than its square will also 0.
2. cosec 90° is 1 than its square is 1
3. cot 45° is 1 than square is 1.

0+1-1 = 0

Answer 2

Answer:

the answer is zero

Step-by-step explanation:

cos^2 90°+cosec^2 90° - cot^2 45°

0+1-1

o