Anonymous,HowGan

If Tan 0=4/9 and 0 is in quadrant 3, find Sin 0 can someone explain this to me please?

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3 months ago 2

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  1. D.W.

    Don't use 0 to represent θ. Use another variable name, such as x.

    tan(x) = 4/9
    x is in Quadrant III, so sin(x) < 0
    √(4²+9²) = √97
    sin(x) = -4/√97

  2. Como

    tan Ө = 4 / 9
    r² = 4² + 9² = 97
    r = √97

    sin Ө = - 4 / √97

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