`A=(\sqrt(2/3)+\sqrt((50)/3-\sqrt(24)).√6`
`⇔A=\sqrt(2/3).√6+\sqrt((50)/3).√6 -\sqrt(24).√6`
`⇔A=√2.√2+\sqrt((50).√2-2√6.√6`
`⇔A=2+\sqrt((100)-2.6`
`⇔A=2+10-12`
`⇔A=0`
`B=((\sqrt(14)-√7)/(√2-1)+(\sqrt(15)-√5)/(√3-1)):1/(√7-√5)`
`⇔B=(√7.(√2-1)/(√2-1)+√5(√3-1)/(√3-1)).(√7-√5)`
`⇔B=(√7+√5)(√7-√5)`
`⇔B=7-5`
`⇔B=2`