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02-03-2020
Mathematics

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using third III identity find
a]983²-17²
b]194×206

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02-03-2020

Answer:

a- a^2 - b^2 =(a+b) (a-b)

(983+17) (983-17)

=1000×966=966000

b- (200-6)(200+6) = 200^2 -36

= 40000 -36 = 39964

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