Monday, February 23, 2009

proving a trigonometry identity

show that [( tanx -sinx ) / (2tanx) ] = sin² (x/2)
divide term by term and change
every thing in terms of sinx and cosx and
then use half angle formulae
use this link for trigonometric identities formulae
please leave your comments below
index of math problems

trigonometric identities

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