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Mathematics 21 Online
OpenStudy (anonymous):

what is csc240 ?

OpenStudy (lgbasallote):

do you know the reference angle of 240?

OpenStudy (anonymous):

yes 60 degrees

OpenStudy (lgbasallote):

good! @Callisto will explain more :)

OpenStudy (callisto):

csc240 = -csc60 = -1/sin60\[=-\frac{1}{\frac{\sqrt3}{2}}=?\]

OpenStudy (anonymous):

thank you !

OpenStudy (callisto):

Welcome~

OpenStudy (lgbasallote):

you know why it's negative right? coz that's normally the confusing part

OpenStudy (callisto):

it's negative as it's in quadrant III

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