A geometric progression X has a first term of 4a and it’s sixth term is 256. Another Geometric progression Y has a first term of 3a and it’s fifth term is 48. Find the first term of X and the sum of the first four terms of X?
An 8.00mf capacitor is connected in parallel to another capacitor producing a total capacitance of 500microfarad .what is the capacitance of the second capacitor
(b)what is unreasonable about this results
(c)which assumption are unreasonable?