Hello, Pupil!

You made silly mistakes in the last step . . .

Differentiate the following:

My attempt for 1:

First I rewrite to get rid of the radical: .

Then I start differentiating using product rule:

Then chain rule:

After simplifying:

. . . . . . . . . ↑ . . . . . . . . . .↑

. . . . . . . just 2. . . . . . in numerator

My attempt for number 2:

First I rewrite the equation to get rid of the fraction:

Then I begin to differentiate using product rule:

Chain rule:

After simplifying:. . . . . . .?

. . . . . . . . . . . . . . . . . . .↓

. . . . . . . . . . . . . . . . .↑

. . . . . . . . . . . . . . . minus