Write a formula that only works if the angle in the formula is given in radians.
1 answer:
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Begin by multiplying everything by 3 to get rid of the fraction. That gives us 
. The rule is when you divide by a negative, the direction of the sign changes, so we will end up with 
. Because there is a line under the inequality sign, the circle is closed. So your choices are the second, fourth, and sixth.