1.

Prove that sec⁴@- sec²@=tan²@+tan⁴@

Answer» LHS=sec^[email protected]^[email protected]

=sec^[email protected](sec^[email protected])

=((1+tan^[email protected])(1+tan^[email protected])

=tan^[email protected]+tan^[email protected]=RHS

Proved


Discussion

No Comment Found

Related InterviewSolutions