Jamb Mathematics Past Questions For Year 1992
Question 6
Simplify 5\(\sqrt{18}\) - 3\(\sqrt{72}\) + 4\(\sqrt{50}\)
- A. 17\(\sqrt{4}\)
- B. 4\(\sqrt{17}\)
- C. 17\(\sqrt{2}\)
- D. 12\(\sqrt{4}\)
Question 7
If x = 3 - \(\sqrt{3}\), find \(x^2+ \frac{36}{x^2}\)
- A. 9
- B. 18
- C. 24
- D. 27
Question 8
If x = (all prime factors of 44) and y = (all prime factors of 60), the elements of X ∪ Y and X ∩ Y respectively are
- A. (2, 4, 3, 5, 11) and (4)
- B. (4, 3, 5, 11) and (3, 4)
- C. (2, 5, 11) and (2)
- D. (2, 3, 5, 11) and (2)
Question 9
If U = (1, 2, 3, 6, 7, 8, 9, 10) is the universal set. E = (10, 4, 6, 8, 10) and F = {x: 1x\(^{2}\) = 2\(^{6}, x is odd}. Find (E ∩ F)', where ' means the complement of a set.
- A. (0)
- B. U
- C. (8)
- D. \(\phi\)
Question 10
Factorize \(9p^2 - q^2 + 6qr - 9r^2\)
- A. (3p - 3q + r)(3p - q - 3r)
- B. (6p - 3q - 3r)(3p - q - 4r)
- C. (3p - q + 3r)(3p + q - 3r)
- D. (3q - p + 3r)(3q - p + 3r)
