Question

True or False

A.The dot product of two vectors is always less than the product of the lengths of the vectors.

B. All linear combinations of the vectors u= (u1,u2) and v= (v1,v2) form the parallelogram whose adjacent sides are u and v.

C. If A and B are square matrices of the same size, then the second column of AB can be obtained by multiplying the second column of A to the matrix B.

D. The vector that starts at point (−5,4) and ends at point (−2,3) is equal to the vector u= (3,−1).

E. If A is an m×n matrix and x is an m×1 column vector, then the product Ax can be expressed as a linear combination of the columns of A in which the coefficients are components of x.

Answer 1

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