Proszę o pomoc bardzo ważne błagam  zadanie w załączniku..

1. a) [latex]sqrt{(4-8)^2-3cdot(2+5-0,1cdot50)+20+4cdot1frac{1}{2}}=\=sqrt{(-4)^2-3cdot(7-5)+20+4cdotfrac{3}{2}}=\=sqrt{16-3cdot2+20+6}=sqrt{16-6+20+6}=sqrt{36}=6[/latex]   b) [latex]frac{64}{frac{12}{6}}=frac{64}{2}=32[/latex]   c) [latex]frac{[(12-7+8)cdot3+4]:sqrt{1+3}}{2^{4+1}}=frac{(13cdot3+4):sqrt{4}}{2^5}=\=frac{43:2}{32}=frac{43}{32cdot2}=frac{43}{64}[/latex]   d) [latex]4^5cdot4^{-7}cdot4^3=4^1=4[/latex]     2. a) [latex]|x-3|<1\xin(2; 4)[/latex]   b) [latex]|x+5|ge8\xin(-infty; -13>cup<3;infty)[/latex]   c) [latex]|x-2|>6\xin(-infty;4)cup(8;infty)[/latex]   d) [latex]|x+3|le2\xin<-5; -1>[/latex]     3. A={1, 3, 4, 6, 9}   B={2, 4, 6, 9}   C={1, 3, 8}   a) [latex]Acap B={4, 6, 9}[/latex]   b) [latex](Acup B)setminus C={2, 4, 6, 9}[/latex]   c) [latex]Csetminus A={8}[/latex]   d) [latex]Csetminus(Acap B)={1, 3, 8}[/latex]