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If x+1/x =83 then x^3 -1/x^3 =? |
Answer» x+1/x=83Cube on both sidex^3+1/x^3+3(x+1/x)=83^3x^3+1/x^3+3(83)=279x^3+1/x^3=279-279X^3+1/x^3=1 | |