Question $3$

$3$ pts

Use centered difference approximations to estimate the second derivatives of $y={0\mathrm{.}2}^{**}sin((4\mathrm{.}5+x{)}^2)$ at $x=6\mathrm{.}7$ for $h=0\mathrm{.}06.($argument in radians$)$

Employ $O(h^2)$ formula for estimating the results. $($Round the final answers to four decimal places.$)$

Attention! sin function in Matlab uses argument in radians