matma sinus, cosinus...

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Question		Answer
sin (alfa) start learning		b/c
cos /alfa start learning		a/c
tg/ alfa start learning		b/a
ctg/alfa start learning		a/b
sin/beta start learning		a/c
cos/beta start learning		b/c
tg/beta start learning		a/b
ctg/beta start learning		b/a

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