Waec Mathematics Past Questions For Year 2021
Question 16
Simplify 2√7- 14/√7+7/√21
- A. \(\frac{√21}{21}\)
- B. 7\(\frac{√21}{21}\)
- C. \(\frac{√21}{3}\)
- D. 3√21
Question 17
Find The quadratic Equation Whose Roots Are -2q And 5q.
- A. 3x\(^2\) + 3qx - 10q\(^2\)
- B. x\(^2\) + 3qx + 10q\(^2\)
- C. x\(^2\) - 3qx + 10q\(^2\)
- D. x\(^2\) - 3qx - 10q\(^2\)
Question 18
consider the statements:
P = All students offering Literature(L) also offer History(H);
Q = Students offering History(H) do not offer Geography(G).
Which of the Venn diagram correctly illustrate the two statements?
- A. A
- B. B
- C. C
- D. D
Question 19
In △LMN, |LM| = 6cm, ∠LNM = x and sin x = sin x = \(\frac{3}{5}\).
Find the area of △LMN
- A. 60cm\(^2\)
- B. 48cm\(^2\)
- C. 24cm\(^2\)
- D. 30cm\(^2\)
Question 20
The height of an equilateral triangle of side is 10 3√ cm. calculate its perimeter.
- A. 20cm
- B. 60cm
- C. 40cm
- D. 30cm
