- #1

- 77

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The first time i differentiate i get

(-e^-x) ((1-x)^1/2) + (e^-x) ((1-x)^-1/2) (-1/2)

then differentiating this i get

[(e^-x) ((1-x)^1/2)] - [(e^-x) ((1-x)^-1/2) (-1/2)] + [(-1/2e^-x) (1/2(1-x)^3/2) + ((1-x)^-1/2) (1/2e^-x)]

are these correct?

thankyou for checking