Processing math: 65%
Further Mathematics questions and answers

Further Mathematics Questions and Answers

Test your knowledge of advanced level mathematics with this aptitude test. This test comprises Further Maths questions and answers from past JAMB and WAEC examinations.

111.

A binary operation * is defined on the set of real numbers, R, by

P * q = q2p22pq. Find 3 * 2

A.

1312

B.

512

C.

-512

D.

12

Correct answer is C

P * q = q2p22pq.

3 * 2 (where p = 3, q = 2)

i.e 3 *2 =  3222232

4912

512

112.

For what value of k is 4x2 - 12x + k, a perfect square?

A.

-9

B.

94

C.

94

D.

9

Correct answer is D

4x2 - 12x + k;

a = 4, b = -12, c = k.

For perfect square  b2 = 4ac

(-12)2 = 4 * 4 * k;

144 = 16k

k = 144\16

k = 9

113.

If f(x) = 4x3 + px2 + 7x - 23 is divided by (2x -5), the remainder is 7. find the value of p

A.

-7.0

B.

-8.0

C.

-9.6

D.

9

Correct answer is B

f(x) = 4x3 + px2 + 7x - 23

If f(x) is divided by (2x -5), the remainder is f(52)

f52 = 4523 + p522 + 752 - 23

Hence;

 = 1258254 p + 352 - 23

28 = 250 + 250p + 70 - 92

25p = -200;  p = -8.0

114.

If α and β are the roots of 3x2 - 7x + 6 = 0, find \frac{1}{α}\frac{1}{β}

A.

\frac{7}{6}

B.

\frac{7}{3}

C.

\frac{14}{5}

D.

\frac{14}{3}

Correct answer is A

3x^2 - 7x + 6 = 0

α + β = \frac{7}{3};

αβ = 2;

\frac{1}{α}\frac{1}{β}\frac{α +β}{αβ} 

\frac{7}{3} ÷ 2 

\frac{7}{6}

115.

In how many ways can 8 persons be seated on a bench if only three seats are available?

A.

100

B.

125

C.

336

D.

427

Correct answer is C

^3{P}_3 = \frac{8!}{8-3}!

= \frac{(8 * 7 * 6 * 5)!}{5!} 

= 336