Question

answer this question ?​

Answer 1

Step-by-step explanation:

3+√7/3-√7= a+b√7

rationalising the denominator

3+√7 3+√7

-------- * -------

3-√7 3+√7

=> (3+√7)^2

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(3)^2-(√7)^2

=> for numerator (a+b)^2 formula is used

for denominator a^2-b^2 formula is used

therefore 16+√7

--------

2

so answer is a=16 and b=1/2