$5\mathrm{.}2-2$ An angle$-$modulated signal with carrier frequency ${}_c=2{10}^6$ is described by the equation

${}_{EM}(t)=10cos({}_{c}t+0\mathrm{.}1sin2000t)$

$($a$)$ Find the power of the modulated signal.

$($b$)$ Find the frequency deviation $f.$

$($c$)$ Find the phase deviation $.$

$($d$)$ Estimate the bandwidth of ${}_{EM}(t).$