Question

root 5 + root 3 divided by root 5 minus root 3 and given that root 15 is equal to 3.87 rationalize the denominator

Answer 1

=(√5+√3)/(√5-√3)×(√5+√3)/(√5+√3)
=(√5+√3)²/5-3
=5+3+2√5/2
=8+2√5/2
=4+√5
=4+3.87
=7.87 ans