Problem 1P: In Problems 1 to 3, find AB,BA,A+B,AB,A2,B2,5A,3B. Observe that ABBA. Show that... Problem 2P: In Problems 1 to 3, find AB,BA,A+B,AB,A2,B2,5A,3B. Observe that ABBA. Show that... Problem 3P: In Problems 1 to 3, find AB,BA,A+B,AB,A2,B2,5A,3B. Observe that ABBA. Show that... Problem 4P: Given the matrices A=23142105, B=241131, C=214412101 compute or mark as meaningless all products of... Problem 5P: Compute the product of each of the matrices in Problem 4 with its transpose [see (2.2) or (9.1)] in... Problem 6P: The Pauli spin in quantum mechanics are A=0110,B=0ii0,C=1001 (You Will probably find these called m... Problem 7P: Find the matrix product 23142112 By evaluating this in two ways, verify the associative law for... Problem 8P: Show, by multiplying the matrices, that the following equation represents an ellipse. xy5773xy=30. Problem 9P: Find AB and BA given A=1236,B=10452. Observe that AB is the null matrix; if we call it 0, then AB =... Problem 10P Problem 11P: Show that the unit matrix I has the property that we associate with the number 1, that is, IA = A... Problem 12P: For the matrices in Example 3, verify that MM—1 and M—1M both equal a unit matrix. Multiply... Problem 13P: In Problems 13 to 16, use (6.13) to find the inverse of the given matrix. 6935 Problem 14P: In Problems 13 to 16, use (6.13) to find the inverse of the given matrix. 2103 Problem 15P: In Problems 13 to 16, use (6.13) to find the inverse of the given matrix. 123204111 Problem 16P: In Problems 13 to 16, use (6.13) to find the inverse of the given matrix. 201112310 Problem 17P: Given the matrices A=111401420,B=101211212 (a) Find A-1, B-1, B-lAB, and B-1A-1B. (b) Show that the... Problem 18P: Problem 17(b) is a special case of the general theorem that the inverse of a product of matrices is... Problem 19P: In Problems 19 to 22, solve each set of equations by the method of finding the inverse of the... Problem 20P: In Problems 19 to 22, solve each set of equations by the method of finding the inverse of the... Problem 21P: In Problems 19 to 22, solve each set of equations by the method of finding the inverse of the... Problem 22P: In Problems 19 to 22, solve each set of equations by the method of finding the inverse of the... Problem 23P: Verify formula (6.13). Hint: Consider the product of the matrices MCT. Use Problem 3.8. Problem 24P: Use the method of solving simultaneous equations by finding the inverse of the matrix of... Problem 25P: Verify (6.14) by multiplying the matrices and using trigonometric addition formulas. Problem 26P: In (6.14), let ==/2 and verify the result numerically. Problem 27P: Do Problem 26 if =/2,=/4. Problem 28P: Verify the calculations in (6.15), (6.16), and (6.17). Problem 29P: Show that if A and B are matrices which dont commute, then eA+BeAeB, but if they do commute then the... Problem 30P: For the Pauli spin matrix A in Problem 6, find the matrices sinA,cosA,eA, and eiA where i=1. Problem 31P: Repeat Problem 30 for the Pauli spin matrix C in Problem 6. Hint: Show that if a matrix is diagonal,... Problem 32P: For the Pauli spin matrix B in Problem 6, find eiB and show that your result is a rotation matrix.... format_list_bulleted