√1- cos A÷ √1+cos A = cos A / 1 + Sin A ,prove it
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√1- cos A÷ √1+cos A =(√1- cos A÷ √1+cos A ) x (√1-cos A ÷ √1-cos A)
= (1- cos A)/ √ 1- cos^2 A
= (1-cos A)/ sin A
= (1- cos A)/ √ 1- cos^2 A
= (1-cos A)/ sin A
harshitasingla:
It is wrong answer is cos A/ 1+SinA
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