Evaluate: `int(sinsqrt(x))/(sqrt(x))\ dx`

Explanation

Let `I = int (sin sqrt(x))/(sqrt(x))dx`
Put `sqrt(x)=t`
`:. (1)/(2sqrt(x))dx=dt`
`:. (1)/(sqrt(x))*dx=2*dt`
`:. I= int sin t*2 dt`
`= 2 int sin t dt`
`2(-cos t) +c`
`=-2cos sqrt(x)+c`