The current i\displaystyle {i} in a circuit element is given by  i=387100+8t4 \displaystyle \ {i}=\frac{{387}}{{100}}+{8}{t}^{{{4}}}\ amperes.

(a)   Find the charge function q\displaystyle {q}, if  q= i dt\displaystyle \ {q}=\int\ {i}\ {\left.{d}{t}\right.}, and the initial charge is 7.30 coulombs.

q(t)=\displaystyle {q}{\left({t}\right)}=   amperes

(b)   Find the charge after 3.72 seconds. Round your answer to two decimal places.

q(3.72)=\displaystyle {q}{\left({3.72}\right)}=   amperes