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22 April, 23:45

What is the value of x? sin55°=cosx

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Answers (2)
  1. 23 April, 01:52
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    It should end up like this.
  2. 23 April, 02:20
    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
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