Math, asked by jyotsnagaya, 10 months ago

please Slove these /both questions quickly

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Answered by kamalsri

7

Answer:

please mark as brainliest

Step-by-step explanation:

9.9² = 3.15

Answered by Jasmine9115

3

Answer:

ii ) use identity (a-b) =

${a - b} = {a}^{2} - 2ab + {b}^{2}$

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