InterviewSolution
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(f*y)/(((-4*3^n %2B 5*3^(n %2B 1))/(-4*3^(n %2B 1) %2B 5*3^(n %2B 2)))) |
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Answer» (15)^n+1-n+2 - (12)^n-n+1=(15)^3-(12)^1=3375-12=3363 |
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