Compute the exact value of each of the given limits.

$\displaystyle \lim_{{{y}\rightarrow{2}^{{-}}}}\ \sqrt{{{2}-{y}}}$ $\displaystyle =$ Preview Question 6 Part 1 of 3  

$\displaystyle \lim_{{{y}\rightarrow{2}^{+}}}\ \sqrt{{{2}-{y}}}$ $\displaystyle =$ Preview Question 6 Part 2 of 3  

$\displaystyle \lim_{{{y}\rightarrow{2}}}\ \sqrt{{{2}-{y}}}$ $\displaystyle =$ Preview Question 6 Part 3 of 3