Question

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Answer 1

Explanation:

Here the denominator is 8−2

5

. The rationalizing factor is 8+2

5

8−2

5

1

=

8−2

5

1

×

8+2

5

8+2

5

=

8

2

−(2

5

)

2

8+2

5

=

64−20

8+2

5

=

44

8+2

5

=

44

2(4+

5

)

=

22

4+

5