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Mathematics 19 Online
OpenStudy (anonymous):

1 - sin x / cos x = cos x / 1+ sin x Verify the identity! Please (:

OpenStudy (raden):

multiply by (1+sinx)/(1+sinx) for left side, what u get ?

OpenStudy (anonymous):

is it cos^2 x +sin x / 2 + sin ^2 x ?

OpenStudy (anonymous):

I multiplied the right side :O hang on a sec...

OpenStudy (anonymous):

is it cos^2 x / 2 + sin ^2 x @RadEn ?

OpenStudy (raden):

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