Question

if both A and B are rational number then find the value of a and b 3 + √7 / 3 - √ 7 is equal to a + b√7​

Answer 1

Answer:

3+√7/3-√7/3-√7/3-√7

Answer 2

Answer:

a=8 and b=3

Step-by-step explanation:

3+√7/3-√7=a+b√7

convert3+√7/3-√7 into rational number

(3+√7)(3+√7)/(3-√7)(3+√7)=a+b√7

(3+√7) whole square/ 9-7=a+b√7

9+7+6√7/2=a+b√7

16+6√7=2(a+b√7)

16+6√7=2a+2b√7

2(8)+2(3)√7=2a+2b√7

on comparing,

a=8 and b=3