All of the above
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Answer:
RainbowTables
Explanation:
RainbowTables is the best option when the cracker has limited time.
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Given, a = 3, r = 1/2, n = 10
%r is common ratio
%n is number of terms
%a is the first term of the series
Sum = 0;
a = 3;
r = 1/2;
for i = 0 : 1 : 10;
Sum = Sum + a * r ^ i;
end
Sum