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1436

Find the inverse \(\begin{pmatrix} 5 & 3 \\ 6 & 4 \end{pmatrix}\)

  • A. \(\begin{vmatrix} 2 & -\frac{3}{2} \\ -3 & -\frac{5}{2} \end{vmatrix}\)
  • B. \(\begin{vmatrix} 2 & -\frac{3}{2} \\ -3 & \frac{5}{2} \end{vmatrix}\)
  • C. \(\begin{vmatrix} 2 & \frac{3}{2} \\ -3 & \frac{5}{2} \end{vmatrix}\)
  • D. \(\begin{vmatrix} 2 & \frac{3}{2} \\ -3 & \frac{5}{2} \end{vmatrix}\)
View Answer & Discuss JAMB 2013
1437
If y = x sin x, find \(\frac{\delta y}{\delta x}\)
  • A. sin x - cos x
  • B. cos x - x sin x
  • C. cos x + x sin x
  • D. sin x + x cos x
View Answer & Discuss (1) JAMB 2013
1438

If y = (2x + 2)\(^3\), find \(\frac{\delta y}{\delta x}\)

  • A. 3(2x +2)2
  • B. 6(2x +2)
  • C. 3(2x +2)
  • D. 6(2x +2)2
View Answer & Discuss (1) JAMB 2013
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts
1439
The radius of a circle is increasing at the rate of 0.02cms-1. Find the rate at which the area is increasing when the radius of the circle is 7cm.
  • A. 0.75cm2S-1
  • B. 0.53cm2S-1
  • C. 0.35cm2S-1
  • D. 0.88cm2S-1
View Answer & Discuss (4) JAMB 2013
1440
Find the mean of t + 2, 2t - 4, 3t + 2 and 2t.
  • A. t + 1
  • B. 2t
  • C. 2t + 1
  • D. t
View Answer & Discuss (4) JAMB 2013
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts