Mathematics JAMB Past Questions

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891

If x = (all prime factors of 44) and y = (all prime factors of 60), the elements of X ∪ Y and X ∩ Y respectively are

A. (2, 4, 3, 5, 11) and (4)
B. (4, 3, 5, 11) and (3, 4)
C. (2, 5, 11) and (2)
D. (2, 3, 5, 11) and (2)

View Answer & Discuss (1) JAMB 1992

892

If U = (1, 2, 3, 6, 7, 8, 9, 10) is the universal set. E = (10, 4, 6, 8, 10) and F = {x: 1x\(^2\) = 2\(^6\), x is odd}. Find (E ∩ F)', where ' means the complement of a set.

A. (0)
B. U
C. (8)
D. \(\phi\)

View Answer & Discuss (6) JAMB 1992

893

Factorize \(9p^2 - q^2 + 6qr - 9r^2\)

A. (3p - 3q + r)(3p - q - 3r)
B. (6p - 3q - 3r)(3p - q - 4r)
C. (3p - q + 3r)(3p + q - 3r)
D. (3q - p + 3r)(3q - p + 3r)

View Answer & Discuss (1) JAMB 1992

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894

Solve the equation: \(y - 11\sqrt{y} + 24 = 0\)

A. 8, 3
B. 64, 9
C. 6, 4
D. 9, -8

View Answer & Discuss (10) JAMB 1992

895

Make t the subject of formula S = ut + \(\frac{1}{2} at^2\)

A. \(\frac{1}{a}\) (-u + \(\sqrt{U^2 - 2as}\))
B. \(\frac{1}{a}\) {u \(\pm\) (U² - 2as)}
C. \(\frac{1}{a}\) {u \(\pm\) \(\sqrt{2as}\)}
D. \(\frac{1}{a}\) {-u + \(\sqrt{( 2as)}\)}

View Answer & Discuss (2) JAMB 1992

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