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tmua.co.uk TMUA Mock Paper 1 · Q1

Paper 1Sequences & series

The sum of the first nn terms of a sequence is given by the formula Sn=5n2+knS_n=5n^2+kn, where kk is a constant. The 6th term of the sequence is 52. Find the value of kk.

A−13-13
B−8-8
C−3-3
D33
E2222

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