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Rationalize the denominator of the given expression \(\frac{...

Rationalize the denominator of the given expression 1+aa1+a+a

A.

1 + 2a - 2a(1+a)

B.

1(1+a)

C.

2a - 2a(1+a)

D.

1 + 2a - 2a+b

Correct answer is A

1+aa1+a+a = 1+aa1+a+a x 1+aa1+aa

= 1+a+a1+aa

= 2a + a(1 + a)

= 1 + 2a - 2a(1+a)