File talk:Trigonometric-functions-thick.gif
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[edit]Shouldn't the origin be labled on this image? After all, sine is just cosine shifted by 90° JLAF 07:20, 4 January 2007 (UTC)
Shouldn't the origin be labled on this image? After all, sine is just cosine shifted by 90° JLAF 07:20, 4 January 2007 (UTC)[reply]