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6-65.
  1. Solve each of the following equations for y. Homework Help ✎

    1. sin y = x

    2. cos−1 y = x

    3. sin2 y + x2 = 1

    4. 2 sin y cos y = a

y = sin−1(x)

See part (a).

Don't forget the ±.

2sin(y)cos(y) = sin(2y)