Question:
Mark $(\sqrt{)}$ against the correct answer in each of the following:
$\int \frac{\sin \sqrt{x}}{\sqrt{x}} d x=?$
A. $2 \cos \sqrt{x}+C$
B. $-2 \cos \sqrt{\mathrm{x}}+\mathrm{C}$
C. $-\frac{\cos \sqrt{x}}{2}+C$
D. $\frac{\cos \sqrt{x}}{2}+C$
Solution:
