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16 June, 20:09

Sin^2x - 2sinx + 1 = 0

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Answers (2)
  1. 16 June, 21:11
    0
    90, 270 degrees

    Step-by-step explanation:

    sin (x) = a

    a^2 - 2a + 1 = 0

    (a-1) ^2 = 0

    1 = a

    So ...

    1 = sin (x)

    90, 270 = x
  2. 16 June, 21:23
    0
    Step-by-step explanation:

    x=Pi / 2+2 Pi n
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