Step 1:

(7)

The function is .

Apply derivative on each side with respect to .

Use constant multiple rule of derivative : .

Use exponential of derivative :.

Use chain rule of derivative : .

.

Step 2:

(8)

The function is . Apply derivative on each side with respect to .

Use logarithm of derivative : .

Use chain rule of derivative : .

.

Step 3:

(9)

The function is .

Apply derivative on each side with respect to .

Use quotient rule of derivative : .

Use constant multiple and power rule of derivative : .

.

Solution :

(7) .

(8) .

(9) .