Inverse matrix

Find how many times is the larger determinant is the matrix A, which equals 9 as the determinant of its inverse matrix.

Result

n =  81

Solution: Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...): Be the first to comment! Next similar examples:

1. Inverse matrix Find out inverse by Gauss elimination or by reduction method. A=[2/3. 1 -3. 1/3]
2. The inverse The inverse matrix for matrix A has a determinant value of 0.333. What value has a determinant of the matrix A?
3. The determinant The determinant of the unit matrix equals 7. Check how many rows the A matrix contains. Find the roots of the quadratic equation: 3x2-4x + (-4) = 0.
5. Six terms Find the first six terms of the sequence a1 = -3, an = 2 * an-1
6. 75th percentile (quartille Q3) Find 75th percentile for 30,42,42,46,46,46,50,50,54
7. Seats Seats in the sport hall are organized so that each subsequent row has five more seats. First has 10 seats. How many seats are: a) in the eighth row b) in the eighteenth row
8. Trinity How many different triads can be selected from the group 43 students?
9. Unknown number I think number. If subtract from the twelfth square the ninth square I get a number 27 times greater than the intended number. What is this unknown number?
10. Balls We have n identical balls (numbered 1-n) is selected without replacement. Determine 1) The probability that at least one tensile strength number coincides with the number of balls? 2) Determine the mean and variance of the number of balls, which coincides.
11. Equation Equation ? has one root x1 = 8. Determine the coefficient b and the second root x2.
12. Linsys2 Solve two equations with two unknowns: 400x+120y=147.2 350x+200y=144
13. Theorem prove We want to prove the sentence: If the natural number n is divisible by six, then n is divisible by three. From what assumption we started?
14. Derivation Exists a function whose derivation is the same function?
15. Calculation of CN Calculate: ?
16. Calculation How much is sum of square root of six and the square root of 225?
17. Sequence Between numbers 1 and 53 insert n members of the arithmetic sequence that its sum is 702.