ctga=8/15 - oblicz sinus i cosinus
ctgα=8/15
a=15
b=8
c=√15²+8²=√225+64=√289=17
sinα=15/17
cos α=8/17
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ctgα=8/15
a=15
b=8
c=√15²+8²=√225+64=√289=17
sinα=15/17
cos α=8/17