Math, asked by krish471, 1 month ago

10. Examine, whether the following numbers are rational or irrational:

((2 - √7)(2 + √7)

Answers

Answered by shrijak06

0

Answer:

(2-√7)(2+√7)

= (2)^2 - (√7)^2. [(a+b)(a-b) = (a)^2 - (b)^2]

=4-7

= -3 ANS

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