Question

Rationalize the denominator
5_√7​

Answer 1

Answer:

Answer for this will be 5√7

Step-by-step explanation:

5/√7×√7/√7

Now,√7×√7=7

=5√7/7

Answer 2

Answer:

1/ 5 - √7

1/ 5 -√7 x 5 + √7 / 5 + √7

5 + √7 / (5)*2 - (√7) *2. using identity a2 -b2 = (a - b) (a + b)

5 + √7 / 25 - 7

5 + √7 / 18

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