Question

Find the value of A and B when a a + b root 15 is equal to root 5 + root 3 by root 5 minus root 3

Answer 1

a+broot15=root5+root3/root5-root3

=(root5+root3/root5-root3)(root5+root3/root5+root3)

=(root5)2+root15+root15+(root3)2/(root5)2-(root3)2

=5+2(root15)+3/5-3

=8+2root15/2

=2(4+root15)/2

=4+root15=a+broot15

then a=4 & b=1

Answer 2

Answer:

Thanks for the answer ....