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OpenStudy (anonymous):
2 tan^2 x+ 3 tanx – 1 = 0 , for 0 < x < 180
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OpenStudy (anonymous):
@hartnn
hartnn (hartnn):
plug in tan x = y then you'll get an quadratic in y
hartnn (hartnn):
can u solve quadratic equations ?
OpenStudy (anonymous):
|dw:1379933475597:dw|
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