18-06-2016
Mathematics

contestada

how do you solve

sin9x/1-cos^2(9x)

Respuesta :

jhonyy9 jhonyy9

18-06-2016

using formula sin^2 x +cos^2 x = 1 you get 1 - cos^2(9x) = sin^2(9x)

so in this way this fraction will be rewrited

sin9x/(1-cos^2(9x) = sin9x / sin^2(9x) = 1/sin9x

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