Processing math: 100%
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.

196.

If nC2 = 15, find the value of n

A.

8

B.

7

C.

6

D.

5

Correct answer is C

nC2 = 15

n!(n3)!2! = 15

n(n1)(n2)!(n2)!2 = 15 

n2 - n = 30

n2 - n - 30 = 0

(n - 6)(n + 5) = 0

n = 6 or n = -5 

197.

Rationalize; 12+1

A.

2 - 1

B.

1 - 2

C.

212

D.

122

Correct answer is A

12+1 x 2121

= 2121

= 211=21

198.

Evaluate tan 75o; leaving the answer in surd form (radicals) 

A.

3+2

B.

3+1

C.

31

D.

32

Correct answer is D

Tan 75o = Tan (45o + 30o)

= tan45o+tan30o1tan45otan30o

3+131

RATIONALIZE THE DENOMINATOR

= 3+1313+13+1

4+2331

2(2+3)2

= 2 + 3

199.

Solve; P2+k3 = 5 and 2p = k = 6 simultaneously

A.

p = -6, k = -6

B.

p = -6, k = 6

C.

p = 6, k = 6

D.

p = 6, k = -6

Correct answer is C

P2+k3 = 5

3p+2k6 = 5

2p + 3k = 30

- 2p - k = 6

¯4k4=244 

k = 6

 

From 2p - k = 6

2p - 6 = 6

2p2=122

p = 6

200.

Solve: 8x2 = 43x

A.

-2

B.

-1

C.

1

D.

2

Correct answer is B

8x2 = 43x

23(x2) = 22(3x)

2 3x4 = 26x

2 x4  = 6x

4x4 = 44

x = -1