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Mathematics 23 Online
OpenStudy (anonymous):

to evaluate tan290

OpenStudy (anonymous):

what's your question?

OpenStudy (anonymous):

write it in the form tan(270+20) or tan(360-70) ..now apply the formula

OpenStudy (anonymous):

use: Tan (A+B) = (tan A + tan B)/ (1-tanAtanB) or conversely, Tan (A-B) = (tan A - tan B)/ (1+tanAtanB)

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