Problem 1E: GOAL Use the reduced row-echelon form of the augmented matrix to find the number of solutions of a... Problem 2E: Find the rank of the matrices in Exercises 2 through 4. 2. [123012001] Problem 3E: Find the rank of the matrices in Exercises 2 through 4. 3. [111111111] Problem 4E: Find the rank of the matrices in Exercises 2 through 4. 4. [147258369] Problem 5E: a. Write the system |x+2y=73x+y=11| in vector form. b. Use your answer in part (a) to represent the... Problem 6E: Consider the vectors v1,v2,v3 in 2 (sketched in theaccompanying figure). Vectors v1 and v2 are... Problem 7E: Consider the vectors v1,v2,v3 in 2 shown in the accompanying sketch. How many solutions x, y does... Problem 8E: Consider the vectors v1,v2,v3,v4 in 2 shown in theaccompanying sketch. Arguing geometrically, find... Problem 9E: Write the system |x+2y+3z=14x+5y+6z=47x+8y+9z=9| in matrix form. Problem 10E: Compute the dot products in Exercises 10 through 12 (if the products are defined,). 10. [123][121] Problem 11E: Compute the dot products in Exercises 10 through 12 (if the products are defined,). 11. [1997][666] Problem 12E: Compute the dot products in Exercises 10 through 12 (if the products are defined,). 12. [1234][5678] Problem 13E: Compute the products Axin Exercises 13 through 15 using paper and pencil. In each case, compute the... Problem 14E: Compute the products Axin Exercises 13 through 15 using paper and pencil. In each case, compute the... Problem 15E: Compute the products Axin Exercises 13 through 15 using paper and pencil. In each case, compute the... Problem 16E: Compute the products Axin Exercises 16 through 19 using paper and pencil (if the products are... Problem 17E: Compute the products Axin Exercises 16 through 19 using paper and pencil (if the products are... Problem 18E: Compute the products Axin Exercises 16 through 19 using paper and pencil (if the products are... Problem 19E: Compute the products Axin Exercises 16 through 19 using paper and pencil (if the products are... Problem 20E: a. Find [234567]+[753101] . b. Find 9[112345] . Problem 21E: Use technology to compute the product [1789129115151648][1956] . Problem 22E: Consider a linear system of three equations with threeunknowns. We are told that the system has a... Problem 23E: Consider a linear system of four equations with three unknowns. We are told that the system has a... Problem 24E: Let A be a 44 matrix, and let b and c be two vectors in 4 . We are told that the system Ax=b has... Problem 25E: Let A be a 44 matrix, and let b and c be two vectors in 4 . We are told that the system Ax=b is... Problem 26E: Let A be a 43 matrix, and let b and c be two vectors in 4 . We are told that the system Ax=b has... Problem 27E: If the rank of a 44 matrix A is 4, what is rref(A)? Problem 28E: If the rank of a 53 matrix A is 3, what is rref(A)? Problem 29E: In Problems 29 through 32, let x=[539]andy=[201]. 29. Find a diagonal matrix A such that Ax=y . Problem 30E: In Problems 29 through 32, let x=[539]andy=[201]. 30. Find matrix A of rank 1 such that Ax=y . Problem 31E: In Problems 29 through 32, let x=[539]andy=[201]. 31. Find an upper triangularmatrix A such that... Problem 32E: In Problems 29 through 32, let x=[539]andy=[201]. 32. Find a matrix A with all nonzero entries such... Problem 33E: Let A be the nn matrix with all 1‘s on the diagonaland all 0’s above and below the diagonal. What is... Problem 34E: We define the vectors e1=[001],e2=[010],e3=[001] in 3 . a. For A=[abcdefghk] , compute Ae1,Ae2 , and... Problem 35E: In m , we define ei=[0010]ithcomponent . If A is an nm matrix, what is Aei ? Problem 36E: Find a 33 matrix A such that A[100]=[123],A[010]=[456] ,and A[001]=[789] . Problem 37E: Find all vectors x such that Ax=b , where A=[120001000] and b=[210] . Problem 38E Problem 39E Problem 40E Problem 41E Problem 42E Problem 43E Problem 44E: Consider an nm matrix A with more rows than columns (nm) . Show that there is a vector b in n such... Problem 45E Problem 46E Problem 47E: A linear system of the form Ax=0 is called homogeneous. Justify the following facts: a. All... Problem 48E: Consider a solution x1 of the linear system Ax=b .Justify the facts stated in parts (a) and (b): a.... Problem 49E: Consider the accompanying table. For some linear systems Ax=b, you are given either the rank of the... Problem 50E: Consider a linear system Ax=b , where A is a 43 matrix. We are told that rank How manysolutions does... Problem 51E: Consider an nm matrix A, an rs matrix B, and avector x in p . For which values of n, m, r, s, and p... Problem 52E: Consider the matrices A=[1012] and B=[0110] .Can you find a 22 matrix C such that A(Bx)=Cx , for all... Problem 53E: If A and B are two nm matrices, is (A+B)x=Ax+Bx for x all in m ? Problem 54E Problem 55E Problem 56E: Is the vector [301385662] a linear combination of [17194],[56328],[92352],[25479] ? Problem 57E Problem 58E: For which values of the constants b and c is the vector [3bc] a linear combination of [132],[264] ,... Problem 59E: For which values of the constants c and d is [57cd] a linear combination of [1111] and [1234] ? Problem 60E: For which values of the constants a, b, c and d is [abcd] a linear combination of [0030],[1040] and... Problem 61E: For which values of the constant c is [1cc2] a linear combination of [123] and [139] ? Problem 62E: For which values of the constant c is [1cc2] a linear combination of [1aa2] and [1bb2] , where a and... Problem 63E: In Exercises 63 through 68, consider the vectors vand w, in the accompanying figure. 63. Give a... Problem 64E: In Exercises 63 through 68, consider the vectors vand w, in the accompanying figure. 64. Give a... Problem 65E Problem 66E Problem 67E Problem 68E Problem 69E Problem 70E: Let A be the nn matrix with 0’s on the main diagonal, and 1‘s everywhere else. For an arbitrary... format_list_bulleted