Question $4$

$1$ pts

Find the linear approximation $L(x)$ of the function $f(x)=\sqrt[\phantom{2}]{1-x}$ at $a=0.$

$L(x)=\frac{x}{2}1$

$L(x)=1-\frac{x}{2}$

$L(x)=1\sqrt[\phantom{2}]{2}x$

$L(x)=\frac{\sqrt[\phantom{2}]{2}}{2}x-1$

None of the above

Question $5$

$1$ pts