Question

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Answer 1

Question no. 2 is in the attachment

1)Given -

.

To find -

The values of a and b

Solution -

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By rationalising the denominator,

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.

.

.

.

.

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We know that,

Rational number is always equal to other rational numbers and irrational numbers is always equal to other irrational numbers

.

and,

.

.

Therefore the value of a is 0 and b is 4