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Evalute: (Without expanding at any stage) `|(a,2b,4c),(2,2,2),(2^(n),3^(n),5^(n))|`, where `a = 1 + 2 + 4 +` …. upto n terms, `b= 1 + 3 + 9 +`…. upton n terms and `c=1 +5+25`…upto n terms.

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