# Math

posted by
**hhfo**
.

Trigonometry Identities problem:

Prove the following;

(tan^2x)(cos^2x)

=

(sec^2x - 1)(1-sin^4x) ÷ (1+sin^2x)

posted by
**hhfo**
.

Trigonometry Identities problem:

Prove the following;

(tan^2x)(cos^2x)

=

(sec^2x - 1)(1-sin^4x) ÷ (1+sin^2x)