When y is a vector in r n that is a linear combination y = c1u1 + c2u2 + . . + cpup of nonzero vectors u1, u2, . . , up from an orthogonal set in r n , then the cj can be computed without using systems of linear equations or using row operations on a matrix. true or false?

Asequence has its first term equal to 4, and each term of the sequence is obtained by adding 2 to the previous term. if f(n) represents the nth term of the sequence, which of the following recursive functions best defines this sequence? (1 point) f(1) = 2 and f(n) = f(n − 1) + 4; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2n; n > 1 f(1) = 2 and f(n) = f(n − 1) + 4n; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2; n > 1 i will award !