Question

Verify the identity

Answer 1

\[(1+\tan ^{2}u)(1-\sin ^{2}u) = 1\]

Answer 2

@cebroski

Answer 3

1+ tan^2 = sec^2 = 1/cos^2
1 - sin^2 = cos^2
combine 1/cos^2 * cos^2 =1

Answer 4

@ASAAD123 so basically it just equals 1.

Answer 5

verify means prove. that's it.

Answer 6

oh okay !