$4.$ Plot using anonymous function for y $=$ e$^($cos$($x$^2)).$ Use symbolic expression. Repeat and produce the same plot using fplot. You can you for both fplot. Title: the graph of $$the name of the function. Xlabel: y$-$value and ylabel: y$-$value. Use red color for one plot and green color for the other one.

$5.$ A work done can be solved by the integral of area under the curve.

If w is given as w $=$e$6$x then evaluate starting v $=0$ to $3.$ Also take a derivative and evaluate the function. Use symbolic expression.