How much is seven out of thirty minus seven out of thirty
Seven out of thirty minus seven out of thirty equals zero
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- 1. Given that a (negative 3a, 5) B (6.2b) is symmetric about y axis and ab is parallel to X axis, the values of a and B are obtained
- 2. How to solve x-0.36x = 16
- 3. Let the matrix a be a normal matrix and satisfy the cubic power of a = the quadratic power of 2A. It is proved that the quadratic power of a = 2A
- 4. Let a be a matrix of order 3, | a | = 0.5, find | (2a) ^ (- 1) - 5A * | =? My solution is as follows: The original formula = | - 4A * | according to | AA * | = | - a | - e |, then | - A * | = | - a | ^ 2 = 0.25 So the above formula = - 1, but the answer is - 2?
- 5. Let a be a matrix of third order, and | a | = & frac12;; the - 1 power of determinant | (2a) + A * | =? A=4 B=-4 C=2 D=-2 E=-1 F=1
- 6. Let a be a third-order matrix, a | = 1 / 2, and find (2a) ~ - 1 power - 5A
- 7. Let the matrix A = {8, - 5,6, - 3} and the vector α = {6,7} be the quintic power α of a and the 100th power α of A
- 8. The first row of matrix A is 0 2 - 1, the second row is - 25 - 2, and the third row is - 48 - 3
- 9. How to find the fifth power of a in the first line 1,1,2, the second line 1,2,1 and the third line 2,1,1 of matrix A
- 10. Let the matrix A = the first line 1 1 1, the second line 2 2 2, the third line - 1 - 1 - 1, the fourth line 3 3 3 3 find the nth power of A
- 11. Given the point m (- 4a-8, a + 5) in the plane rectangular coordinate system, the distance from the point m to the X axis is 2 It's urgent. Thank you
- 12. If 2 equals 5, 3 equals 15, 4 equals 225, then what is 5
- 13. Equation x 6 = 6 / X
- 14. (x+4)÷8=1.
- 15. Two out of seven is equal to the sum of three molecules of one
- 16. F (x) = 5 * x ^ (1 / 3) * (x + 9) ^ (2 / 3) what are the monotone increasing and decreasing intervals of this equation? What are the maximum and minimum values?
- 17. The number of subsets of set {0,1,2,3,4,5,6,7,8,9} is (); the number of proper subsets is (); the number of nonempty proper subsets is ()
- 18. 10 times 1 / 11 + 11 times 1 / 12 + +How much is 2000 times 1 / 1999?
- 19. How to find the intersection point of positive proportion function and inverse proportion function? Why is it a quadratic equation of one variable when it is listed?
- 20. A simple algorithm of 972 / 18 + 35 * 19