Question

Prove it who will prove earlker will be marked as brainliest.

Answer 1

LHS = tan^3.O + cot^3.O

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sec^2.O cosec^2.O

............(1+tan^2.O=sec^2.O)

(1+cot^2.O= cosec^2.0)

Answer 2

Answer:

Step-by-step explanation:mark me if you can if not off

The answer is here,

Given that,

= > \: \frac{a + ib}{c + id} = p + iq

We can replace the " i " as " -i ".

= > \frac{a - ib}{c - id} = p - iq