Question

$\int^1_0\frac{1}{\sqrt{3+x}+\sqrt{1+x}}dx=a+b\sqrt2+c\sqrt3$ then $2a-3b-4c$ is equal to _____.

• A. 10
• B. 0
• C. 12
• D. 20

Answer 1

Answer: (C)

12

Answer 2

Hence, The correct option is (C): $12$