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Mathematics 16 Online
OpenStudy (jskhupmang):

Hi I really need help. How to solve +-(√1+cos20°)÷2 . I have the answer. Help will medal and follow u if you show me the work.

OpenStudy (anonymous):

what type of math is this?

OpenStudy (jskhupmang):

algebra2 but also pre calc

OpenStudy (jskhupmang):

nevermind i got it now its Cos(x/2)=cos(20°/2) ans: cos10°

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