Câu 1:
\(C_RA=[-2;10)\)
=>R\A=[-2;10)
=>A=(-\(\infty\);-2)\(\cup\)[10;+\(\infty\))
\(C_RB=\left(-7;1\right)\)
=>R\B=(-7;1)
=>B=(-\(\infty\);-7]\(\cup\)[1;+\(\infty\))
A\(\cup\)B=(-\(\infty\);-2)\(\cup\)[1;+\(\infty\))
=>\(C_R\left(A\cup B\right)=[-2;1)\)