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Determine the quadrant in which each angle lies. (The angle measure is given in radians.)

1. (5π/6)
a) first quadrant
b) second quadrant
c) third quadrant
d) fourth quadrant
i think it is a)

2. -(5π/3)
a) first quadrant
b) second quadrant
c) third quadrant
d) fourth quadrant
i think it is b)

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2 answers
  1. 1. 5pi/6 = 5*180/6 = 150o. 2nd Quad.

    2. -(5pi/3) = -(5*180/3) = -300o. 1st quad.
    The negative sign means 300o CW rotation from due East; That places the
    vector in the 1st quadrant and is equivalent to 60o CCW.

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  2. Trash Bad not good at all do stuff better so we can under stand

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