Mathematics Past Questions for JAMB, WAEC, NECO, POST UTME

Mathematics Past Questions

Question 36:

JAMB 2019

| \begin{matrix} 2 & - 4 \\ x & 9 \end{matrix} | = 58

, find the value of x.

A. 10
B. 30
C. 14
D. 28

View Answer & Explanation

Question 37:

JAMB 2019

y = 6 x^{3} + 2 x^{- 2} - x^{- 3}

, find

\frac{d y}{d x}

.

A.

\frac{d y}{d x} = 15 x^{2} - 4 x^{- 2} - 3 x^{- 2}

\frac{d y}{d x} = 6 x + 4 x^{- 1} - 3 x^{- 4}

\frac{d y}{d x} = 18 x^{2} - 4 x^{- 3} + 3 x^{- 4}

\frac{d y}{d x} = 12 x^{2} + 4 x^{- 1} - 3 x^{- 2}

View Answer & Explanation

Question 38:

JAMB 2019

\frac{d}{d x} [\log (4 x^{3} - 2 x)]

is equal to

A.

\frac{12 x - 2}{4 x^{2}}

\frac{43 x^{2} - 2 x}{7 x}

\frac{4 x^{2} - 2}{7 x + 6}

\frac{12 x^{2} - 2}{4 x^{3} - 2 x}

View Answer & Explanation

Question 39:

JAMB 2019

f (x) = 3 x^{3} + 4 x^{2} + x - 8

, what is the value of f(-2)?

A. -24
B. 30
C. -18
D. -50

View Answer & Explanation

Question 40:

JAMB 2019

Solve for x in

\frac{4 x - 6}{3} \leq \frac{3 + 2 x}{2}

x \leq 1 \frac{1}{2}

x \leq \frac{21}{2}

x \geq \frac{21}{2}

x \geq 1 \frac{1}{2}

View Answer & Explanation

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Mathematics Past Questions and Answers

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Mathematics Past Questions

Question 36:

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