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OpenStudy (anonymous):
Can someone explain to me how to solve this? Find a cofunction with the same value as the given expression. 18) cos 57° 19) tan 27° 20) csc 42°
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OpenStudy (anonymous):
\[\cos u =\sin[ (\frac{ \pi }{ 2 })-u]\]
OpenStudy (anonymous):
:( im sorry im still confused
OpenStudy (anonymous):
cos u represents cos 57 question 18. It is equal to the cofunction on the right hand side
OpenStudy (anonymous):
im sorry i still dont get it
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