Question

rationalise 5+2root3/7+4root3​

Answer 1

Answer:

mark me brain list

Step-by-step explanation:

Lhs = (5+2√3)/(7+4√3)

= [(5+2√3)(7-4√3)]/[(7-4√3)(7+4√3)]

=[35-20√3+14√3-24]/[7²-(4√3)²]

=[11-6√3]/[49-48]

=11-6√3

therefore

11-6√3 = a+b√3

compare both sides

a= 11, b= -6

Answer 2

Answer:

Step-by-step explanation:

I HAVE ATTACHED THE SOLUTION ..

HOPE IT HELPS..

PLEASE MARK BRAINLIEST..