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(a) When one circuit is being constructed, the inexpensive but durable capacitor installed between these two points is found to have capacitance 35.4 µF. To meet the specification, one additional capacitor can be placed between the two points. To meet the specification, one additional capacitor can be placed between the two points. Should it be in series or in parallel with the 35.4 µF capacitor? (in series)

What should be its capacitance?

(b) The next circuit comes down the assembly line with capacitance 32.5 µF between A and B. What additional capacitor should be installed in series or in parallel in that circuit, to meet the specification? (parallel)

a) Ct = C1 +C2

33uF = 35.4uF + C2

isn't C2 = 33fF - 34.5uF ??

b) (1/Ct) = (1/C1) + (1/C2)

isnt (1/C2) = (1/33uf) - (1/32.5uF) ??

Im lost here...any help will be apprecieated