Steve S. answered • 03/24/14
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Tutoring in Precalculus, Trig, and Differential Calculus
∑{n=0,26}((-1)^n 2n)
= 0-2+4-6+8-10+...+48-50+52
= 0+1+1+...
= 26
Dalia S.
asked • 03/23/14evaluate the following
sigma^26 n=0(-1)n2n
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