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  1. C

    I need help with answering the following pre-calc questions:?

    where 0 is less than or equal to x is less than 2pi a) sin2x + sinx=0 b) 3cos^2x - sin^2x=2 c) 3csc^2x + 5cscx-2 = 0
  2. C

    Find two angles that are greater than or equal to 0 degrees and less than 360 degrees...

    ...such that tan of the? angle = 0.5318....I need help with trying to figure out this problem!
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