Question

$intlimits^4_0 { frac{5}{sqrt{x} } } , dx$

Answer 1

$intlimits^4_0 {frac{5}{ sqrt{x} } } , dx =5 intlimits^4_0 { frac{1}{ sqrt{x} } } , dx =10 sqrt{x} | _{0} ^{4} =10 sqrt{4} -0=20$