Question

find the value of a and b if​

Answer 1

Step-by-step explanation:

rationalize

√7-2/√7+2

(√7-2)^2/(√7-2)(√7+2)

7+4-4√7/7-4

11-4√7/3

on comparing

we get a=-4/3

b=11/3

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Answer 2

Answer:

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hope this helps