Math, asked by nia20, 6 months ago

(10.2) ² - (9.8) ² using identities

Answers

Answered by gayathrivishy

6

Answer:

$a^{2} - b^{2} = (a+b)(a-b)\\ 10.2^{2} - 9.8^{2} = (10.2+9.8) (10.2-9.8)\\= 20 X 0.4\\=8$

Step-by-step explanation:

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