Question

(2+√3)(2-√3)is a rational number.Is It true Or False,state Reason.
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Answer 1

Answer:

(2+√3)(2-√3)

(a+b)(a-b)=a²-b²

in the same way

(2+√3)(2-√3)

=2²-(√3)²

=4-3=1

answer is true as 1 is a rational number

Answer 2

Answer:

MARK AS BRAINLIST......