Integral with a sum or difference of square roots in the denominator: rationalise

1. A.
   4
2. B.
   $2\sqrt{2}$
3. C.
   $\sqrt{2}$
4. D.
   2

Tap an option to check your answer.

1. A.
   4
2. B.
   10
3. C.
   7
4. D.
   8

Tap an option to check your answer.

1. A.
   $2 + \sqrt{2} + \log_{e}(1 + \sqrt{2})$
2. B.
   $2 - \sqrt{2} - \log_{e}(1 + \sqrt{2})$
3. C.
   $2 + \sqrt{2} - \log_{e}(1 + \sqrt{2})$
4. D.
   $2 - \sqrt{2} + \log_{e}(1 + \sqrt{2})$

Tap an option to check your answer.