Question

class 10 trigono standard math​

Answer 1

Answer:

Step-by-step explanation:

Multiply and divide with (1-sinA)

$\frac{(1-sinA)(1-sinA)}{(1+sinA)(1-sinA)}$=$\frac{1+sin^{2}A -2sinA}{cos^{2}A}$

                        = $sec^{2}A$+$tan^{2}A$-2(secA)(tanA)

                        =$(secA-tanA)^{2}$

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Answer 2

Here u go ♥️♥️♥️♥️♥️

Refer the attachment.

Hope it helps u...................