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Mathematics 19 Online
OpenStudy (anonymous):

cos^2 60° + sec^2 150° - csc^2 210°

OpenStudy (anonymous):

@jim_thompson5910

OpenStudy (jdoe0001):

hmmm actaully. the 1st one cosinne... ok so

OpenStudy (jdoe0001):

hint: \(\bf cos^2(60^o)+sec^2(150^o)-csc^2(210^o) \\ \quad \\ cos^2(60^o)+ \cfrac{1}{cos^2(150^o)}- \cfrac{1}{sin^2(210^o)} \)

OpenStudy (anonymous):

good job jdoe ur awesome

OpenStudy (anonymous):

I will medal u

OpenStudy (anonymous):

@jdoe0001 I got 1/2 + ( 2 √/3)^2 - (2)^2 how do I simplify it?

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