C2 are parallel capacitors and their total capacitance is 1000.1 uF. I think
C1 is large enough and I can remove
C2 from the circuit. The result will be an open circuit.
Let's assume that I can buy one capacitor that has the value of 1000.1 uF. I know I can't do it in the real world because a 1000.1uf capacitor does not exist in the shops but the question will help me understand the circuit well.
Can I replace
C2 with the 1000.1 uF cap?
Does this 0.1 uF really matter? Is it important?