Mathematics Past Questions And Answers
If x is positive, for what range of values of x is 4 + 3x< 10?
- A. 0< x< 2
- B. x< 2
- C. 1< x< 2
- D. 0< x< 43/4
\(P = {1, 3, 5, 7, 9}, Q = {2, 4, 6, 8, 10, 12}, R = {2, 3, 5, 7, 11}\) are subsets of \(U = {1, 2, 3, ... , 12}\). Which of the following statements is true?
- A. \(Q \cap R = \varnothing\)
- B. \(R \subset P\)
- C. \((R \cap P) \subset (R \cap U)\)
- D. \(n(P' \cap R) = 2\)
If two angles of a triangle are 30° each and the longest side is 10cm. Calculate the length of each of the other sides.
- A. 5cm
- B. 4cm
- C. 3√3 cm
- D. 103/√3cm
(a)(i) Write down the expansion of \((1 + x)^{7}\) in ascending powers of x.
(ii) If the coefficients of the fifth, sixth and seventh terms in the expansion in (a)(i) above form a linear sequence(A.P), find the common difference of the A.P.
(b) Using the trapezium rule with ordinates at 1, 2, 3, 4 and 5, calculate, correct to two decimal places,
\(\int_{1}^{5} \sqrt{(2x + 8x^{2})} \mathrm {d} x\).
View Discussion (0)WAEC 2016 THEORYCalculate 33105 − 14425
- A. 13135
- B. 21315
- C. 43025
- D. 11035
Given that \(p = 4i + 3j\), find the unit vector in the direction of p.
- A. \(\frac{1}{3}(4i + 3j)\)
- B. \(\frac{1}{3}(3i + 4j)\)
- C. \(\frac{1}{5}(3i + 4j)\)
- D. \(\frac{1}{5}(4i + 3j)\)
In \(sin(X+30)^o=cos40^o\),find X
- A. 10o
- B. 20o
- C. 50o
- D. 60o
In the diagram, \(\frac{PQ}{RS}\), find xo + yo
- A. 360o
- B. 300o
- C. 270o
- D. 180o
Divide 1101001\(_{two}\) by 101\(_{two}\)
- A. 11101\(_{two}\)
- B. 111\(_{two}\)
- C. 10111\(_{two}\)
- D. 10101\(_{two}\)
(a) Using the substitution \(u = x - 2\), write \(\frac{x^{3} + 5}{(x - 2)^{4}}\) as an expression in terms of u.
(b) Using the answer in (a), express \(\frac{x^{3} + 5}{(x - 2)^{4}}\) in partial fractions.
View Discussion (0)WAEC 2018 THEORY