Examine whether the given question is a rational number or irrational – InterviewSolution

1.	Examine whether the given question is a rational number or irrational number (7-√7)(7+√7)
Answer» Step-by-step explanation:it's a RATIONAL no. Since (a+b)(a-b) EQUALS ( a2-b2)Ans EQUAL to 42 which is rational no.

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