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If det(A) = 5, then find det((2A)^-1). Can anyone tell me how to solve it? How can fond out matrix A from here? The 10th term of an arithmetic series is 34 and the sum of the first 20 terms is 210. Determine the 25th term.? What is 1,7,13,19 in arithmetic sequence? Is time a measurement? How many Newtons does a 4 cylinder engine exert? Im doing a project and I ve looked everywhere but I haven t found anything. Please Help!?