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2676
If xo is obtuse, which of the following is true?
  • A. x . 90
  • B. 180 < x < 270
  • C. x < 90
  • D. 90 < x < 180
View Answer & Discuss (1) WAEC 2008
2677
If tan x = 1, evaluate sin x + cos x, leaving your answer in the surd form
  • A. 2\(\sqrt{2}\)
  • B. \(\frac{1}{2} \sqrt{2}\)
  • C. \(\sqrt{2}\)
  • D. 2
View Answer & Discuss WAEC 2008
2678
If cos (x + 25)o = sin 45o, find the value of x
  • A. 20
  • B. 30
  • C. 45
  • D. 60
View Answer & Discuss WAEC 2008
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2679

If \(2^n = 128\), find the value of \(2^{n - 1})(5^{n - 2})\)

  • A. 5(106)
  • B. 2(106)
  • C. 5(105)
  • D. 2(105)
View Answer & Discuss (5) WAEC 2008
2680
If x \(\alpha\) (45 + \(\frac{1}{2}y\)), which of the following is true>?
  • A. x varies directly as y
  • B. x varies inversely as y
  • C. x is partly constant and partly varies as y
  • D. x vries jointly as 45 and directly as y
View Answer & Discuss (2) WAEC 2008
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