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4 April, 21:32

Which pair of angles have congruent values for the sin x° and the cos y°?

A. 42°; 42°

B. 42°; 48°

C. 42°; 138°

D. 42°; 132°

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Answers (2)
  1. 4 April, 22:23
    0
    B. 42; 48

    Explanation:

    sin x = cos (90-x)

    eg sin 42 = cos (90-42) = cos 48
  2. 4 April, 23:07
    0
    The answer is letter B.
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