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Mastering Organic Chem help!? If the path is circular, which force provides necessary centripetal force? Collation for the homeless? In Algebra, if an eigenvalue of a matrix A is 3 and 5, what is the eigenvalue of matrix A^(-2)? If x#y= (x.y)/(x+y) then 4#3 = 4x3/4+3 =1 remainder 5 If 5#x =2 remainder 5, determine the value of x?