waecE-LEARNING
Further Mathematics Paper 2, Nov/Dec. 2011  
Questions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Main
General Comments
Weakness/Remedies
Strength
Question 7
  1. Given that n =  and s = . Find the vector q such that |q| = 35 and q is in the direction of    (n + 5s).

 

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Observation

  This question was reported to be quite unpopular with the candidates and the performance of those who attempted it was described as fair. Only few of them were reportedly able to obtain the vector q. Candidates were expected to find the unit vector in the direction of (n + 5) as follows: (n + 5s) =  + 5 = . |n + 5s| =  = 7. Unit vector =  = . Hence, the required vector q = 35 = .

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