CAPE Pure Mathematics Unit 1 · May/June 2010 · Paper 1 · Question Q14
Which of the following statements is FALSE?
- (A)
\sum_{r=1}^{n} 3^r = \sum_{t=2}^{n+1} 3^{t-1} - (B)
\sum_{r=5}^n 3r = 3\sum_{r=5}^n r - (C)
\sum_{r=4}^n \lg r^3 = 3\sum_{r=4}^n \lg r - (D)
\sum_{r=1}^n (9 - r^2) = \sum_{r=1}^n (3 - r) \sum_{r=1}^n (3 + r)
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