√x 1-√x √x 1-√x
( ----- + -------- ) ÷ ( ------- - -------- )
√x+1 √X √x+1 √x
x + 1-x x -1+x
=( ------------ ) ÷ ( ----------- )
√x+1 *√x √x+1 *√x
=1/(2x-1)