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.

171.

The function f : x \(\to\) x\(^2\) + px + q has turning point when x = -3 and remainder of -6 when divided by (x + 2). Find the value of q.

A.

6

B.

2

C.

-2

D.

-8

Correct answer is B

f (x) = x\(^2\) + px + q

\(\frac{dy}{dx}\) = 2x + p

2x + p = 0

2(-3) + p = 0

p = +6

f(-2) = -2\(^2\) + p(-2) + q

= -6 2p + q = -10

-2(-16) + q = -10

-12 + q = -10 

q = -10 + 12 

= 2

172.

Evaluate \(\int^0_0 \sqrt{x} dx\)

A.

3

B.

9

C.

18

D.

27

Correct answer is C

\(\int^0_0 \sqrt{x} dx\)

\(\frac{x^{\frac{1}{2}} + 1}{\frac{1}{2} + 1}\) |\(^9_0\)

\(\frac{2x^{\frac{3}{2}}}{3}\)|\(^9_0\)

= \(\frac{2(9)^{\frac{3}{2}}}{3}\)

= \(\frac{2(3)^3}{3}\)

= \(\frac{2 \times 27}{3}\)

= 2 x 9

= 18

173.

Find the coordinates of the centre of the circle 3x\(^2\) + 3y\(^2\) - 6x + 9y - 5 = 0

A.

(-3. \(\frac{9}{2}\))

B.

(-1. \(\frac{3}{2}\))

C.

(1, - \(\frac{3}{2}\))

D.

(3. -\(\frac{9}{2}\))

Correct answer is C

\(\frac{3x^2}{3} + \frac{3y^2}{3} - \frac{6x}{3} + \frac{9y}{3} - \frac{5}{3}\) = 0

2gx = -2x, 2 fy = 3y 

g = -1, f = \(\frac{3}{2}\)

Centre (1, - \(\frac{3}{2}\)) 

174.

Find the coefficient of the term in the binomial expansion of [2x + \(\frac{3y}{4}\)]\(^3\) in descending powers of x.

A.

\(\frac{27}{64}\)y\(^2\)

B.

\(\frac{27}{8}\)y\(^2\)

C.

8y\(^2\)

D.

9y\(^2\)

Correct answer is B

(2x + \(\frac{3y}{4}\))\(^3\)

= 3(2x) (\(\frac{3y}{4}\))\(^2\)

= \(\frac{27}{8}\)y\(^2\)

175.

Given that P and Q are non-empty subsets of the universal set, U. Find P \(\cap\) (Q U Q`).

A.

p

B.

P`

C.

Q

D.

Q`

Correct answer is A

P \(\cap\) (Q U Q`)

P \(\cap\) U = P