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If secA - tanA = x, then the value of x is Options: 1) √[(1 + sinA)/(1 - sinA)] 2) √[(1-sinA)/(1+sinA)] 3) (1-sinA)/(1+sinA) 4) (1 + sinA)/(1 - sinA)

If secA - tanA = x, then the value of x is Options: 1)  √[(1 + sinA)/(1 - sinA)] 2)  √[(1-sinA)/(1+sinA)] 3)  (1-sinA)/(1+sinA) 4)  (1 + sinA)/(1 - sinA)

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Grade:12th pass

1 Answers

Vijay Mukati
askIITians Faculty 2590 Points
7 years ago
simplifying sec A – tan A = x, we get(1 – sinA)/cosA = x

Now using option (b)
Rationalize optin (b) you will get (1-sinA)/cosA on simplificaiton.\

Best of luck!

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