a)
sin=8/4[tex]\sqrt{5}[/tex]=2/[tex]\sqrt{5}[/tex]=2[tex]\sqrt{5}[/tex]/5
cos=4/4[tex]\sqrt{5}[/tex]=1/[tex]\sqrt{5}[/tex]=[tex]\sqrt{5}[/tex]/5
tg=8/4=2
ctg=4/8=1/2
b)
sin=3/3[tex]\sqrt{5}[/tex]=1/[tex]\sqrt{5}[/tex]=[tex]\sqrt{5}[/tex]/5
cos=6/3[tex]\sqrt{5}[/tex]=2/[tex]\sqrt{5}[/tex]=2[tex]\sqrt{5}[/tex]/5
tg=3/6=1/2
ctg=6/3=2
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a)
sin=8/4[tex]\sqrt{5}[/tex]=2/[tex]\sqrt{5}[/tex]=2[tex]\sqrt{5}[/tex]/5
cos=4/4[tex]\sqrt{5}[/tex]=1/[tex]\sqrt{5}[/tex]=[tex]\sqrt{5}[/tex]/5
tg=8/4=2
ctg=4/8=1/2
b)
sin=3/3[tex]\sqrt{5}[/tex]=1/[tex]\sqrt{5}[/tex]=[tex]\sqrt{5}[/tex]/5
cos=6/3[tex]\sqrt{5}[/tex]=2/[tex]\sqrt{5}[/tex]=2[tex]\sqrt{5}[/tex]/5
tg=3/6=1/2
ctg=6/3=2