Mathematics 2017 Past Questions | JAMB
Study the following Mathematics past questions and answers for JAMB, WAEC NECO and Post-JAMB. Get prepared with official past questions and answers for upcoming examinations.
41. The operation * on the set R of real number is defined by x * y = 3x + 2y − 1, find 3* − 1
- A. 9
- B. – 9
- C. 6
- D. – 6
42. Find the gradient of the line joining the points (3, 2) and (1, 4)
- A. 3/2
- B. 2/1
- C. -1
- D. 3/2
43. Simplify (3√64a3)\(^{−1}\)
- A. 4a
- B. \(\frac{1}{8a}\)
- C. 8a
- D. \(\frac{1}{4a}\)
44. If \(\frac{2 \sqrt{3} – \sqrt{2}}{\sqrt{3} + 2 \sqrt{2}}\) = m + n √ 6,
find the values of m and n respectively
- A. 1, − 2
- B.− 2, n = 1
- C. \(\frac{-2}{5}\), 1
- D. \(\frac{2}{3}\)
45. If α and β are the roots of the equation 3x2 + bx − 2 = 0. Find the value of \(\frac{1}{\alpha}\) + \(\frac{1}{\beta}\)
- A. \(\frac{-5}{3}\)
- B. \(\frac{-2}{3}\)
- C. \(\frac{1}{2}\)
- D. \(\frac{5}{2}\)
46. Find the range of the following set of numbers 0.4, −0.4, 0.3, 0.47, −0.53, 0.2 and −0.2
- A. 1.03
- B. 0.07
- C. 0.03
- D. 1.0
47. Evaluate 1 − (\(\frac{1}{5}\) x 1\(\frac{2}{3}\)) + (5 + 1\(\frac{2}{3}\))
- A. 4
- B. 3
- C. \(\frac{22}{3}\)
- D. 3 \(\frac{2}{3}\)
48. What is the product of 2x2 − x + 1 and 3 − 2x
- A. 4x3 − 8x2 + 5x + 3
- B. −4x3 + 8x2 − 5x + 3
- C. −4x3 − 8x2 + 5x + 3
- D. 4x3 + 8x2 − 5x + 3
