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Mathematics 13 Online
OpenStudy (anonymous):

what is tan(100) and tan(-20)

Miracrown (miracrown):

Do you need to find exact expressions for these tangent functions?

Miracrown (miracrown):

anyways... the easiest way to proceed then is to just plug these into a calculator.

OpenStudy (anonymous):

I need the exact epressions

Miracrown (miracrown):

Usually when dealing with tangent problems like this, use is made of the following tangent formula:

Miracrown (miracrown):

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