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29 June, 14:30

If sin (thetA) = 0.3, find sin (theta+pi)

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Answers (2)
  1. 29 June, 15:10
    0
    Additional formula:

    sin (theta + π) = sin (theta) · cos π + cos (theta) · sin π =

    = 0.3 · ( - 1) + cos (theta) · 0 = - 0.3
  2. 29 June, 17:58
    0
    To solve this question, first find the value of theta.

    Sin (theta) = 0.3

    Theta = sin^-1 (0.3)

    Theta = 17. 457 degrees.

    Pi = 180 degrees.

    Sin (17.457+180) = sin (197.457) = - 0.3.
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