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Evaluate: underset(x rarr 0)("lim") ((7...

Evaluate: `underset(x rarr 0)("lim") ((729)^x-(243)^x-(81)^x+9^x+3^x-1)/(x^3)`

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  3. Evaluate: underset(x rarr 0)("lim") ((729)^x-(243)^x-(81)^x+9^x+3^x-1...

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