Q. $cose c^{2} A cot^{2} A - sec^{2} A tan^{2} A -$
$(cot^{2} A - tan^{2} A) (sec^{2} A cos e c^{2} A - 1)$ =

2172 289 Trigonometric Functions Report Error

A

0

28%

B

1

32%

C

-1

34%

D

2

6%

Solution:

Put A = 45 $^{\circ}$