Question

Show that tan^4 A + tan^2A= sec^4 A - sec^2 A

Answer 1

Answer:

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iska answer is just below

Please see below.

Explanation:

sec

4

A

−

sec

2

A

=

sec

2

A

(

sec

2

A

−

1

)

=

sec

2

A

tan

2

A

=

(

tan

2

A

+

1

)

tan

2

A

=

tan

4

A

+

tan

2

A

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