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I NEED 3 & 4 ANSWERS & STEPS PLEASE

Algebra
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Sep 13th, 2014

option d pi/6

 Here the angle given is 5 pi /6 i.e. 1500. θ = 5 pi /6 lies in the second quadrant so we would subtract it from 'pi' to get reference angle as:

θ r = pi – 5 pi /6,
θ r = (6 pi – 5 pi) /6 = pi /6 or 300


4.

80° – 360° =  –280°  

80° + 360° =  440° 

and 

80°- 180° =  -100°

80° + 180° =  260°

So option c -

reference 

http://hotmath.com/hotmath_help/topics/coterminal-angles.html

Sep 13th, 2014

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