2. If the current in 3 mF capacitor is i(t) = e ^ t * sin 3t. Plot a graph of the current vs time. Is it true this coding for this question?

clear;clc;
t=0:10;
f=exp(t).*sin(3*t);
diff (f) 

ans = 1×10

1.0e+04 * 0.0000 -0.0002 0.0010 -0.0038 0.0126 -0.0399 0.1220 -0.3617 1.0449 -2.9512

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c=0.003;
I=c*diff(f);
figure;
plot(1:10,I); 
grid;
xlabel('time');
ylabel('current'); 
title('current vs time');

[David Goodmanson]

Hi Muhammed, they are providing a current and asking you to plot it. No need for diff.

[Walter Roberson]

mohamed comments to @David Goodmanson

would you please help me to my project is related to this question.