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Jamb 1989 Mathematics Past QuestionsQuestion 26:Simplify \(\frac{x(x + 1)^{\frac{1}{2}} - (x + 1)^{\frac{1}{2}}}{(x + 1)^{\frac{1}{2}}}\) A. \(\frac{-1}{x + 1}\) B. \(\frac{1}{x + 1}\) C. \(\frac{1}{x}\) D. \(\frac{1}{x - 1}\) Question 27:The sum of the first two terms of a geometric progression is x and sum of the last terms is y. If there are n terms in all, then the common ratio is A. \(\frac{x}{y}\) B. \(\frac{y}{x}\) C. (\(\frac{x}{y}\))\(\frac{1}{n - 2}\) D. (\(\frac{y}{x}\))\(\frac{1}{n - 2}\) Question 28:If -8, m, n, 19 are in arithmetic progression, find (m, n) A. 1, 10 B. 2, 10 C. 3, 13 D. 4, 16 Question 29:A regular polygon of (2k + 1) sides has 140° as the size of each interior angle. Find k A. 4 B. 4\(\frac{1}{2}\) C. 8 D. 8\(\frac{1}{2}\) Question 30:PQRS is a rhombus. If PR\(^2\) + QS\(^2\) = kPQ\(^2\), determine k. A. 1 B. 2 C. 3 D. 4 |
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