Question

Please prove. The question

Answer 1

It is true

Step-by-step explanation:

$\sqrt{\frac{1+cos x }{1-cosx}}$

Multiply and divide by 1+cos x

$\sqrt{ \frac{(1+cos x)^{2} }{1-cos^{2}x }}\\ =\frac{1+cos x}{sin x} ---> 1-cos^{2}x=sin^{2}x\\  =\frac{1}{sinx}+ \frac{cos x}{sin x} = cosec x + cot x  \\HENCE... PROVED...$

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