Waec Further Mathematics Past Questions
Question 671
If α and β are roots of x\(^2\) + mx - n = 0, where m and n are constants, form the| equation | whose | roots | are | 1 α | and | 1 β | . |
- A. mnx\(^2\)Â - n\(^2\)Â x - m = 0
- B. mx\(^2\)Â - nx + 1 = 0
- C. nx\(^2\)Â - mx + 1 = 0
- D. nx\(^2\)Â - mx - 1 = 0
Question 672
A particle of mass 3kg moving along a straight line under the action of a F N, covers a line distance, d, at time, t, such that d = t\(^2\) + 3t. Find the magnitude of F at time t.
- A. 0N
- B. 2N
- C. 3(2t + 3)N
- D. 6N
Question 673
The length of the line joining points (x,4) and (-x,3) is 7 units. Find the value of x.
- A. 4√3
- B. 2√6
- C. 3√2
- D. 2√3
Question 674
What percentage increase in the radius of a sphere will cause its volume to increase by 45%?
- A. 13%
- B. 15%
- C. 23%
- D. 25%
Question 675
What is the angle between \(a = (3i - 4j)\) and \(b = (6i + 4j)\)?
- A. 13°
- B. 87°
- C. 100°
- D. 110°
