Jamb Mathematics Past Questions and Answers

Question 686:

• JAMB 1982

If sin \(\theta\) = \(\frac{m - n}{m + n}\); Find the value of 1 + tan2\(\theta\)

A. \(\frac{(m^2 + n^2)}{m + n}\)
B. \(\frac{(m^2 + n^2 + 2mn)}{4mn}\)
C. \(\frac{2(m^2 + n^2 + mn)}{m + n}\)
D. \(\frac{(m^2 + n^2 + mn)}{m + n}\)

Question 687:

• JAMB 1982

The currency used in a country is called 'Matimalik'(M) and is of base seven. A lady in that country bought 4 bags of rice at M56 per bag and and 3 tins of milk at M4 per tin. What is the total cost of the item she bought?

A. M246₇
B. M242₇
C. M236₇
D. M341₇
E. M338₇

Question 688:

• JAMB 1982

Solve for x, If \(\frac{\frac{2}{x}}{\frac{p^2 + p^2}{p^2 + p^2}}\) = m

A. \(\frac{4pq}{m(p + q)}\)
B. \(\frac{2p^2q^2}{m(q^2 + p^2)}\)
C. \(\frac{2pq}{m(q^2 + p^2)}\)
D. \(\frac{2p^2q^2}{m(p^2)}\)

Question 689:

• JAMB 1982

Express 37.05 x 0.0042 in standard form

A. 15.561 x 10²
B. 1.5561 x 10^-4
C. 1.556 x 10^-1
D. 1.5561 x 10¹
E. 1.55 x 10¹

Question 690:

• JAMB 1982

Find the values of x for which the expression \(\frac{(x - 3)(x - 2)}{x^2 + x - 2}\)

A. 1, -2
B. -1, 2
C. 2, 3
D. -1. -2
E. -2, -3