7.83 x 7.83 - 1.17 x 1.17/
6.66
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Answered by
5
Answer:
7.83×7.83-1.17×1.17/6.66
(7.83)² - (1.17)² / 6.66
[(a²-b²) = (a+b) (a-b)]
(7.83+1.17)(7.83-1.17) /6.66
(9)(6.66) / 6.66
= 9
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2
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