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If tan theta= 1/5
Simplify tan(540-theta)
In the unit circle do I have to go clockwise or anti-clockwise from the fourth quadrant?
Please help is needed for this

  • Maths -

    Since 540 = 3*180
    and the period of tan(x) is 180
    tan(540-x) = tan(-x) = -tan(x) = -1/5

    However, to answer your question, yo need to go clockwise, since you have tan(-x).

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