Question

1- cot^2 45/ 1+ cot^2 45= ?

Answer 1

Answer:

0

Step-by-step explanation:

1-cot^2 45 / 1+ cot^2 45

= 1- 1^2 / 1 + 1^2 ( cot 45 =1 )

= 1-1 / 1+1

= 0 / 2

= 0