Mathematics Past Questions

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2111

The quadratic equation whose roots are 1 - \(\sqrt{13}\) and 1 + \(\sqrt{13}\) is?

A. x² + (1 - \(\sqrt{13}\)x + 1 + \(\sqrt{13}\) = 0
B. x² - 2x - 12 = 0
C. x² - 2x + 12 = 0
D. x² + 12 + 2x² = 0

View Answer & Discuss (2) JAMB 1984

2112

Find a factor which is common to all three binomial expressions 4a2 - 9b2, 8a3 + 27b3, (4a + 6b)2

A. 4a + 6b
B. 4a - 6b
C. 2a + 3b
D. 2a - 3b
E. none

View Answer & Discuss (1) JAMB 1984

2113

If (x - 2) and (x + 1) are factors of the expression x³ + px² + qx + 1, what is the sum of p and q

A. 9
B. -3
C. 3
D. \(\frac{17}{3}\)
E. \(\frac{2}{3}\)

View Answer & Discuss (1) JAMB 1984

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2114

A cone is formed by bending a sector of a circle having an angle of 210^o. Find the radius of the base of the cone if the diameter of the circle is 12cm.

A. 12cm
B. 7.00cm
C. 1.75cm
D. 21cm
E. 3.50cm

View Answer & Discuss (2) JAMB 1984

2115

The sides of a triangle are(x + 4)cm, xcm and (x - 4)cm, respectively If the cosine of the largest angle is \(\frac{1}{5}\), find the value of x

A. 24cm
B. 20cm
C. 28cm
D. 7cm
E. \(\frac{88}{7}\)

View Answer & Discuss (3) JAMB 1984

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