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निम्न फलन का अवकल गुणांक ज्ञात कीजिये -` (cos x )^(y) =(sin y )^(x)`

Answer» Correct Answer - ` (ytan x+ log sin y)/(log cos x - x cot y)`
`(cos x)^(y) =(siny)^(x) " "rArr ylog cos x =x log sin y `
`rArr" "y*(1)/(cosx )(d)/(dx) (cos x ) +log cos x *(dy)/(dx) `
` " "=x *(1)/(sin y) *(d)/(dx) (sin y) +log sin y*1`


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