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Jamb 2009 Mathematics Past QuestionsQuestion 21:If Q is\( \left[ \begin{array}{cc} 9 & -2 \\ -7 & 4 \\ \end{array} \right]\) , then |Q| is A. -50 B. -22 C. 22 D. 50 Question 22:If P \(=\left[\begin{array}{cc}x+3 & x+2\\ x+1 & x-1\end{array}\right]\) evaluate x if |P| = -10 A. -5 B. -2 C. 2 D. 5 Question 23:Find the acute angle between the straight lines y = x and y = √3x A. 15o B. 30o C. 45o D. 60o Question 24:A regular polygon has 150o as the size of each interior angle. How many sides does it have? A. 12 B. 10 C. 9 D. 8 Question 25:In the figure above , TS//XY and XY = TY, ∠ SYZ = 34°, ∠ TXY = 47°, find the angle marked n A. 47o B. 52o C. 56o D. 99o |
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