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5 August, 13:25

What is the value of x? sin55°=cosx

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Answers (2)
  1. 5 August, 13:34
    0
    Well from identities we know that sina=cos (90-a), in this case 90-55=35. But if we didn't know this we could also say:

    cosx=sin55

    x=arcos (sin55)) = 35
  2. 5 August, 15:04
    0
    It should end up like this.
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