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March 29, 2017

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Angles x and y are located in the first quadrant such that sinx=3/5 and cosy=5/13.

a) Determine an exact value for cosx.
b) Determine an exact value for siny.

  • advanced functions - ,

    x is in a 3-4-5 triangle
    y is in a 12-13-5 triangle

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