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Mathematics 1991 WAEC Past Questions

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21

Find the coordinates of point B

  • A. (0,11/2)
  • B. (O,2)
  • C. (2,0)
  • D. (11/2, 2)
  • E. (11/2, 0)
View Answer & Discuss (3) WAEC 1991
22
The first term a of an A.P is equal to twice the
common difference d. Find, in terms of d, the 5th
term of the A.P.
  • A. 4d
  • B. 5d
  • C. 6d
  • D. a + 5d
  • E. 2a + 4d
View Answer & Discuss WAEC 1991
23

The common ratio of a G.P. is 2. If the 5th term is
greater than the 1st term by 45, find the 5th term,

  • A. 3
  • B. 6
  • C. 45
  • D. 48
  • E. 90
View Answer & Discuss (2) WAEC 1991
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24
Two towns, P and Q, are on (4oN 40oW) and (4oN
20oE) respectively. What is the distance between
them, along their line of latitude? (Give your
answer in teems of π and R, the radius of the earth).
  • A. 2πR cos4o
  • B. πR sin40o
  • C.
    πR/2
    cos4o
  • D.
    πR/3
    cos4o
  • E.
    πR/6
    cos4o
View Answer & Discuss WAEC 1991
25

the graph above is a sketch of

  • A. y = sin 2x
  • B. y=sinx
  • C. y=cos2x
  • D. y=2sinx
  • E. y = 2cos x
View Answer & Discuss (4) WAEC 1991
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