Proszę o wykonanie tych 4 zadań daje Najj na jutro ! 4 zadania krótkie 

Zadanie1,2,3 w załącznikach Zadanie 4 [latex]a=3[/latex] [latex]c=3sqrt8=6 sqrt{2}[/latex] Obliczam [latex]b[/latex] [latex]b^2=c^2-a^2[/latex] [latex]b^2=(3sqrt8)^2-3^2[/latex] [latex]b^2=72-9[/latex] [latex]b^2=63[/latex] [latex]b=3sqrt{7}[/latex] ------------- [latex]sinalpha=frac{a}{c}=frac{3}{6 sqrt{2}}=frac{1}{2sqrt2}=frac{sqrt2}{4}[/latex] [latex]cosalpha=frac{b}{c}=frac{3sqrt{7}}{6 sqrt{2}}=frac{sqrt{7}}{2 sqrt{2}}=frac{sqrt{14}}{4}[/latex] [latex]tgalpha=frac{a}{b}=frac{3}{3sqrt{7}}=frac{1}{ sqrt{7} }=frac{sqrt{7}}{7}[/latex] [latex]ctgalpha=frac{b}{a}=frac{3sqrt{7}}{3}= sqrt{7}[/latex]