Question

\[\int \left( \sqrt{x} - \frac{1}{\sqrt{x}} \right)^2 dx\]

Answer 1

\[\int \left( \sqrt{x} - \frac{1}{\sqrt{x}} \right)^2 dx\]
\[ = \int\left( x + \frac{1}{x} - 2 \right)dx\]
` = ∫   x dx + ∫   dx/x - 2\ ∫    x dx`
`= x^2 / 2 + In   | x|  -2 x +C`