Q.7: Using (a-b)(atb)-a-bfind 194 x 206 – InterviewSolution

1.

Q.7: Using (a-b)(atb)-a-bfind 194 x 206

Answer»

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

Then, 194* 206 = (200 - 6)(200 +6)= (200*200) - (6*6)= 40000 - 36= 39964 ans

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