SOLUTION: please help me solve this problem!!! What is the value of csc (-19pi/3)?
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Question 743938: please help me solve this problem!!! What is the value of csc (-19pi/3)?
Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
What is the value of csc (-19pi/3)?
(-19π/3)=(-18π/3-π/3)=(-6π-π/3)=3(2π) revolutions +π/3 clockwise.
you are working with a reference angle, π/3 in quadrant IV where csc and sin<0
csc (-19pi/3)=-csc(π/3)=1/-sin(π/3)=1/-(√3/2)=-2/√3=-2√3/3
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