Step 1:

(a)

The logarithmic value is .

Rewrite as .

Use product rule: .

substitute   and .

Therefore . 

Solution:

.

(b)

Step 1:

The logarithmic value is  .

Use quotient rule: .

substitute the values of  and .

Solution:

. 

 (c)

Step 1:

The logarithmic value is .

Rewrite as .

Use power rule: .

Use product rule: .

substitute the values of  and .

Solution:

. 

(d)

Step 1:

The logarithmic value is .

Rewrite as .

Use power rule: .

substitute the value of  .

Solution:

.

The solutions are as follows 

  .