$c{1}^{**}[e^{3^{**}x}]c{2}^{**}[e^{-3^{**}x}]$

$c_1{e}^{3x}{c}_2{e}^{-3x}$

incorrect

Your answer isn't a variable equal to a formula that returns a number $($it looks like a formula that returns a number$)$

$t$ least one of the answers above is NOT correct.

$(1$ point$)$ Suppose $y=c_1{e}^{kx}{c}_2{e}^{-kx}$ where $k>0$ is a constant, and $c_1$ and $c_2$ are arbitrary constants. Find the following. Enter $c_1$ as $c1$ and $c_2$ as c $2.$

a$.\frac{dy}{dx}=q,$ help $($formulas$)$

b$.\frac{d^{2}y}{d{x}^2}=q,$ help $($formulas$)$

c$.$ Rewrite your answer to the previous part in terms of $y.$

$\frac{d^{2}y}{d{x}^2}=q,$ help $($formulas$)$

d$.$ Find the general solution to $\frac{d^{2}y}{d{x}^2}=9y.$ Enter your answer as an equation $y=$dots.

$$ help $($equations$)$

Only need answer for D