Math, asked by vaalboihea908, 5 hours ago

Using identities, evaluate, 11.12- 9.92

Answers

Answered by ravi2303kumar

2

Answer:

25.2

Step-by-step explanation:

11.1² - 9.9²

= (11.1 + 9.9)(11.1 - 9.9)

= (21)(1.2)

= 25.2

(Idetity used : a²-b² = (a+b)(a-b))

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