tb-that a B-63â – InterviewSolution

1.

tb-that a B-63â

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So

herea/b+b/a=-1So, a^2+b^2/ab=-1a^2+b^2=-aba^3-a^3=(a-b)(a^2+ab+b^2)As, a^2+b^2=-aba^3-b^3=(a-b)(ab-ab)=(a+b) ×0So, a^3-b^3=0thanks

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