$($c$)$ Out of the parameters $,,,,$ is there one $($or more$)$ that makes a small enough

contribution $(20\%$ or less$)$ to and so that it can be neglected. Explain your

reasoning.

$=3,=3,$

$=0\mathrm{.}4,=0\mathrm{.}05,$

$=0\mathrm{.}005,=0\mathrm{.}02.$