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solve 2sin^2 theta-7 sin theta= -3 for theta, where 0<theta<360 degrees

2sinØ - 7sinØ + 3 = 0

(2sinØ -1)(sinØ - 3) = 0
sinØ = 1/2 or sinØ = 3 , that last part is not possible
Ø = 30° or x = 150°

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