1.

`(dy)/(dx) `का मान ज्ञात कीजिये यदि ` (i) x^(y) =y^(x) " "(ii) y+ sin y =cos x `

Answer» Correct Answer - ` (i) (y(y-xlogy ))/(x(x-y log x ))(ii) (-sin x )/(1+cos y)`


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