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Trigonometry 10 Online
OpenStudy (anonymous):

Proving Identities: 2tanx/(1-tan^2x)+1/(2cos^2x-1) = cosx+sinx/(cosx-sinx) ? how ?

OpenStudy (dan815):

ugh its just manipulation u can doo it gogo

OpenStudy (anonymous):

ok sir.i'll try to solve it again.

OpenStudy (dan815):

i dont think u even need to use this but.. if u get stuck http://www.maths.manchester.ac.uk/~cds/internal/tables/trig.pdf

OpenStudy (anonymous):

thanks

OpenStudy (anonymous):

really can't solve it

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