September 2018 1 25 Report

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udowodnić tożasamość trygonometryczną

1/cos²x(1-sin²x)=1

1+cosx/sinx + sinx/1+cosx=2/sinx

sinx/1-cosx + 1-cosx/sinx=2/sinx

ctgx-tgx/sinx+cosx=1/sinx - 1/cosx

(sinx + cosx)²/sinxcosx - 2 +tgx+cosx/sinx

proosze,przynajmnje troszke:)


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