Question

if y=1/a-z find dz/dy

Answer 1

hoe it helps you
thanks for asking this so answer is (Dz)whole square.

Answer 2

hey here is your answer
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$y = \frac{1}{a - z} \\ a - z = \frac{1}{y} \\ z = a - \frac{1 }{y} \\ z = a - {y}^{ - 1}$
then
$= \frac{dz}{dy} \\ = \frac{d}{dy}a - {y}^{ - 1} \\ = \frac{d}{dy}a - \frac{ d }{dy} {y}^{ - 1} \\ = 0 - ( - 1 {y}^{ - 1 - 1} ) \\ = 0 + 1 {y}^{ - 2} \\ = {y}^{ - 2}$
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