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Further Mathematics WAEC past questions and answers

Further Mathematics WAEC past questions and answers

Question: Solve for xx: \log_2(x) - \log_2(x - 2) = 1log 
2
​ 
 (x)−log 
2
​ 
 (x−2)=1.
A) x = 4x=4, B) x = 2x=2, C) x = 6x=6, D) x = 8x=8
Answer: B) x = 2x=2
Question: If A = \begin{bmatrix} 1 & 2 \\ 3 & 4 \end{bmatrix}A=[ 
1
3
​ 
  
2
4
​ 
 ], find A^{-1}A 
−1
  (inverse of AA).
A) \begin{bmatrix} -2 & 1 \\ 1.5 & -0.5 \end{bmatrix}[ 
−2
1.5
​ 
  
1
−0.5
​ 
 ], B) \begin{bmatrix} 2 & -1 \\ -1.5 & 0.5 \end{bmatrix}[ 
2
−1.5
​ 
  
−1
0.5
​ 
 ], C) \begin{bmatrix} 4 & -2 \\ -3 & 1 \end{bmatrix}[ 
4
−3
​ 
  
−2
1
​ 
 ], D) \begin{bmatrix} -4 & 2 \\ 3 & -1 \end{bmatrix}[ 
−4
3
​ 
  
2
−1
​ 
 ]
Answer: A) \begin{bmatrix} -2 & 1 \\ 1.5 & -0.5 \

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