Question

Please solve question no.5

Answer 1

Given secФ + tanФ = p.

We know that sec^2Ф - tan^2Ф = 1.

We know that a^2 - b^2 = (a + b)(a - b).

= > (secФ + tanФ)(secФ - tanФ) = 1

= > (p)(secФ - tanФ) = 1

= > (secФ - tanФ) = (1/p).

Hope this helps!