Math, asked by anoushkachaudhary1, 2 months ago

11 + root 13 × 11 -root 13

Answers

Answered by kkrishnajatt001

1

(11+√13)×(11-√13) = [11² - (√13)²]

= 121 - 13 = 118

bcz. a²-b² = (a+b) ( a-b)

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