1.

यदि ` y = ( x+1) /x , तो (dy)/(dx)` का मान ज्ञात कीजिए ।

Answer» दिया है ` y = ( x+1)/x `
` (dy)/(dx) = d/(dx) ( (x+1)/x)`
` = (x d/(dx) ( x+1) - ( x+1) d/(dx)(x))/(x^(2))`
` = ( x(1) - ( x+1) (1) )/(x^(2)) = ( x- x-1)/(x^(2))`
` = -1/(x^(2))`


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