If A - B = 3 And A^2 + B^2 = 29, Find The Value Of Ab? – InterviewSolution

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1.

If A - B = 3 And A^2 + B^2 = 29, Find The Value Of Ab?

Answer»

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

= 29 - 9 = 20

ab = 10.

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

= 29 - 9 = 20

ab = 10.

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