$\begin{array}{l}1+2= \\ \sqrt{4}\end{array}$
\(\boxed{\text{The sum of 1 and 2 is not equal to the square root of 4}}\)
Step 1 :\(1 + 2 = 3\)
Step 2 :\(\sqrt{4} = 2\)
Step 3 :\(\boxed{\text{The sum of 1 and 2 is not equal to the square root of 4}}\)