Rewrite the series 5 + 10 + 20 + 40 + 80 + 160 + 320 + 640 in sigma notation such…

MATHEMATICS · Subjective · A Level · Mathematics · Sequences and series · Sequences and series

Problem

Rewrite the series 5+10+20+40+80+160+320+6405 + 10 + 20 + 40 + 80 + 160 + 320 + 640 in sigma notation such that the index of summation begins at k=2k = 2.

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