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3 votes
Write the sum using summation notation, assuming the suggested pattern continues. 2 - 6 + 18 - 54 + ...

2 Answers

4 votes
well for that part of the equation : the ans. is -40, but what bout' the other part ?

answered
User Idubnori
by
7.9k points
6 votes
E with infinity over it and n=0 under it with 2(-3)^n to the side
answered
User NoloMokgosi
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