यदि `y= cot ^(-1) {(sqrt(1+sin x )+ sqrt(1- sin x ))/(sqrt( 1+sin x )- sqrt( 1-sin x ))},` दिखाइ
Channel: Doubtnut
Date: 2020-03-29

यदि `y= cot ^(-1) {(sqrt(1+sin x )+ sqrt(1- sin x ))/(sqrt( 1+sin x )- sqrt( 1-sin x ))},` दिखाइए की `(dy)/(dx) =(1)/(2) `