GATE 2020 Mining Engineering Q36: Differentiate (e^t-t)/(e^t+t) | Calculus Solution

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Mining Engineering > GATE 2020 > Calculus

For the value of w=e^t-t/e^t+t dw/dt is

A

2e^t(t²+1)/(e^t-t²)²

B

2e^t(t-1)/(e^t+t)²

C

2e^t(t²-1)/(e^t+t²)²

D

2e^t(t+1)/(e^t-t)²

Correct : b

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