Pre-Cal: Trig

The point (7,2) determines a position angle "t". Find the exact value of sin(t).

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asked by Alex
  1. Relative to the origin and counterclockwise from the +x axis, the "position angle" theta for polar coordinates would be
    arctan 2/7 = 15.9454 degrees

    The sine of that angle is 0.2747 =
    2/sqrt(53)

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    posted by drwls

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