POWER SET

If $A=\{3,\{4,5\},6\},$ find which of the following statement is true:$\left\{3,4,5\right\}\subseteq A$

If $A=\{3,\{4,5\},6\},$ find which of the following statement is true:$\varphi \subseteq A$

If $A=\{3,\{4,5\},6\},$ find which of the following statement is true:$\left\{\varphi \right\}\subseteq A$

If $A=\{3,\{4,5\},6\},$ find which of the following statement is true:$\left\{3\right\}\subseteq A$

If $A=\{3,\{4,5\},6\},$ find which of the following statement is true:$4\in A$

If $A=\{3,\{4,5\},6\},$ find which of the following statement is true:$\left\{\left\{4,5\right\}\right\}\subseteq A$

If $A=\{3,\{4,5\},6\},$ find which of the following statement is true:$\left\{4,5\right\}\in A$

If $A=\{3,\{4,5\},6\},$ find which of the following statement is true:$\left\{4,5\right\}\subseteq A$

Write the following interval in the set-builder form:$F=(0,4]$

Write down all subsets of the following:$B=\{-2,5\}$

Write down all subsets of the following:$G=\left\{5,\{7,8\}\right\}$

Write down all subsets of the following:$F=\{2,\{3\left\}\right\}$

Write down all subsets of the following:$E=\varphi$

Write down all subsets of the following:$D=\{a,b\}$

Write down all subsets of the following:$C=\{-3,0,3\}$

Write down all subsets of the following:

$A=\left\{3\right\}$

State whether $A\subset B$ or $A\not\subset B$.

$A=\left\{1\right\},B=\left\{\left\{1\right\},2\right\}$