Jamb 1981 Mathematics Questions
Question 41:
Solve the given equation \((\log_{3} x)^{2} - 6(\log_{3} x) + 9 = 0\)
- A 27
- B 9
- C \(\frac{1}{27}\)
- D 18
- E 81
Question 42:
What is the length of an arc of a circle that substends 2\(\frac{1}{2}\) radians at the centre when the raduis of the circle = \(\frac{k}{k + 1}\) + \(\frac{k + 1}{k}\) then
- A P < 0
- B P\(\geq\) 0
- C P \(\leq\) 0
- D P < 1
- E P > 0
Question 43:
In the figure, the chords XY and ZW are produced to meet at T such that YT = WT, ZYW = 40o and YTW = 30o. What is YXW?
- A 50<sup style='font-size: smaller;'>o</sup>
- B 75<sup style='font-size: smaller;'>o</sup>
- C 35<sup style='font-size: smaller;'>o</sup>
- D 115<sup style='font-size: smaller;'>o</sup>
- E 30<sup style='font-size: smaller;'>o</sup>
Question 44:
In the figure, find the area of XYZW
- A 60cm<sup style='font-size: smaller;'>2</sup>
- B 54cm<sup style='font-size: smaller;'>2</sup>
- C 27cm<sup style='font-size: smaller;'>2</sup>
- D 54\(\sqrt{2}\)cm<sup style='font-size: smaller;'>2</sup>
- E 27\(\sqrt{2}\)cm<sup style='font-size: smaller;'>2</sup>
Question 45:
In the figure, find x in terms of a, b and c.
- A A + b + c
- B 180<sup style='font-size: smaller;'>o</sup> - (a + b + c)
- C A - b - c
- D A + b
- E A + c