Find the charge flowing through a device if the current is:

Find the charge flowing through a device if the current is:

a) i(t) = 3 A, q(0) = 1 C
b) i(t) = (2t + 5) mA, q(0) = 0
c) i(t) = 20 cos (10t + π/6) μA, q(0) = 2 μC
d) A, i(t) = 10e⁻³⁰ᵗ sin 40t A, q(0) = 0