Mathematics, 16.02.2020 15:08 sherry59Sherry59

(a)Simplify 2a +7a-2a(a - b)

(b)Given that matrix K = (1 -2, 11 - 2).find the
i) determinant of matrix K
ii) inverse of K
(C) The first three terms of a geometric progression are 6+ n, 10 + n and 15+ n. Find the
(i) value of n
(ii) common ratio
(iii) the sum of the first five terms

Answers: 2

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(a)Simplify 2a +7a-2a(a - b)

(b)Given that matrix K = (1 -2, 11 - 2).find the
i) d...