12A's Square BC + 9abc's Square - 15A's Square BC's Square - ABC's square + 2A's Square BC ABC

RELATED INFORMATIONS

• 1. It is known that the area of triangle ABC is the fourth power of 6m and the third power of the square of 3A. If the height of one side is the square of 3M, what is the length of this side? RT
• 2. Diagonalization of matrix 1,1,1,1 Diagonalization of matrix (1,1) 1 1 zai xian deng!
• 3. A is a 3x3 matrix, and 0 ≠ a ^ 3 = a ^ 2 ≠ a, 1). It is proved that a is not diagonalizable. 2.) 0 is the eigenvalue of A. 3). 1 is the eigenvalue of A A is a 3x3 matrix, and 0 ≠ a ^ 3 = a ^ 2 ≠ a, 1) 2.) 0 is the eigenvalue of A 3) . 1 is the eigenvalue of A 4) Give an example of a, which needs to satisfy the condition a ^ 3 = a ^ 2 ≠ a 5) Prove that any 2x2 matrix does not satisfy the condition a ^ 3 = a ^ 2 ≠ a
• 4. Why are the eigenvalues of upper triangular matrices diagonal elements?
• 5. C language to find the sum of main diagonal and sub diagonal elements in n * n matrix In the n * n matrix (an array of N rows and N columns), find the sum of the main diagonal and sub diagonal elements
• 6. The diagonalized matrix is a matrix whose characteristic value is diagonal element. Is this matrix unique? Is there any case where the eigenvalue position is different?
• 7. Why are diagonal elements eigenvalues after diagonalizing a matrix
• 8. The sufficient condition for the similarity of n-order matrix A and diagonal matrix is that a has n different eigenvalues and a is a real symmetric matrix. I want to ask: the general problem is to prove that n-order matrix A and B are similar. In this way, is it necessary to prove matrix B first It can be diagonalized, and then the above sufficient conditions are used to prove the similarity
• 9. A square matrix of order n has n different eigenvalues, which is similar to a diagonal matrix () A. Sufficient and necessary condition B. sufficient but not necessary condition C. necessary but not sufficient condition D. neither sufficient nor necessary condition
• 10. Let the eigenvalues of a matrix of order 3 be 1,2, - 2, and B = 3a2-a3, then find the diagonal matrix with eigenvalues similar to B | B | a-3i |? (the number after a is superscript)
• 11. What is the domain of function f (x) = √ 2 / x + 1? What is the domain of function f (x) = √ 2 / x + 1
• 12. Find the function definition field. F (x) = [(x + 1) ^ 0] / [@ (- x)] Note: @ refers to the quadratic root. X ^ 0 refers to the degree 0 of X
• 13. Given that the domain of F (x) is [- 3,5], what is the domain of K (x) = f (- x) + F (2x + 5)?
• 14. Given the power function y = f (x) image over-current (2, √ 2), find the analytic expression of this function
• 15. If the image of power function y = f (x) passes through point (1 / 3,9), then the analytic expression of F (x) is?
• 16. Given that the image of power function f (x) passes through (9,3), then f (2) - f (1)=______ ．
• 17. It is known that the definition field of function f (x) is r, and f (x + 2) = - f (x) is proved that f (x) is a periodic function If f (x) is an odd function, and if x is greater than or equal to 0 and less than or equal to 1, f (x) = 1 (/ 2) x, find the analytic solution of F (x) in [- 1,3]
• 18. F (x) domain R. satisfies f (x + 1) [1-f (x)] = 1 + F (x). Proof: F (x) is a periodic function It has been proved that the period is 2 Problem 1, when x belongs to [0,1], f (x) = x, find the expression of F (x) on [- 1,0] 2. For the function f (x) = ax in 1 with 100 roots, find the value range of A PS steps, direct answers do not give points
• 19. Let f (x) be a function defined on R with period 2. In the interval [- 1, 1], f (x) = ax + 1, − 1 ≤ x < 0 & nbsp; & nbsp; & nbsp; BX + 2x + 1, 0 ≤ x ≤ 1, where a, B ∈ R. if f (12) = f (32), then the value of a + 3b is______ ．
• 20. Given that the domain of F (X & # 178; - 1) is [- 1,2], then the domain of F (x) is () Given that the domain of F (X & # 178; - 1) is (- 1,2), then the domain of F (x) is ().