Math, asked by doyouwell, 4 hours ago

Examine whether the following numbers are rational or irrational : (7 - √7 ) (7 + √7)

Answers

Answered by gyanshusinghal

0

Answer:

the number is rational using identity a square minus b square

Answered by chandrakantsharma75

0

it is rational number because

we,use the equation a²-b²=(a+b)(a-b)

(7)²-under root (7)²

49-7

42= answer

hope its help you

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