Inverse matrix

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

Correct answer:

n =  81

Step-by-step explanation:

d1=9 d2=1/d1=1/9=19≐0.1111 n=d1/d2=9/0.1111=81

Try another example


Did you find an error or inaccuracy? Feel free to write us. Thank you!



avatar







You need to know the following knowledge to solve this word math problem:

Related math problems and questions:

  • The determinant
    matrix The determinant of the unit matrix equals 7. Check how many rows the A matrix contains.
  • The inverse
    math The inverse matrix for matrix A has a determinant value of 0.333. What value has a determinant of matrix A?
  • Inverse matrix
    inverse Find out inverse by Gauss elimination or by reduction method. A=[2/3. 1 -3. 1/3]
  • Sales vs profit
    Acer+vs+Apple Apple sells 22 percent less computes than Acer, but its sales are 2.2 times higher than Acer. How many times are Apple computers more expensive than Acer?
  • The larger
    59_number The larger of two numbers is nine more than four times the smaller number. The sum of the two numbers is fifty-nine. Find the two numbers.
  • Three friends
    money Three friends divided the profit by 104,650 CZK, so that for every 4 CZK, which got the first friend equals 5 crowns for second and for every 9 CZK, which got the second equals 16 CZK for third. Question: Who got the most and how much.
  • The family
    family How old is a mother if she is four times older than her daughter and 5 years ago she was even seven times older than her daughter? Today, a son is 30 years younger than a father. 7 years ago, a father was seven times older than a son. How old is a son tod
  • Snowman
    snehuliak In a circle with a diameter 50 cm are drawn 3 circles /as a snowman/ where: its diameters are integers, each larger circle diameter is 3 cm larger than the diameter of the previous circle. Determine snowman height if we wish highest snowman.
  • Young mathematician
    age One young mathematician was bored again. He found that the average age of people in the room where the seminar equals to its count. Then his 29-year-old brother entered this room. Even then, the average age of all present was the same as the count of peop
  • Jane and Miro
    two_men Jane's brother Miro is 42 years. And he is three times old as it was Jane when Miro was for so many years as there are now Jane. How old is Jane?
  • Find the
    eq222 Find the number x, which if it increases by 2, then its square increases by 21 percent.
  • Seven times
    numberline Which number seven times is just as higher as 27, how much is smaller than 29?
  • Cuboid
    Cuboid_BBC How many times will increase the volume of a cuboid, if one dimension is twice larger, second dimension three times larger and third dimension four times lower?
  • Dimensions of the trapezoid
    lichobeznik One of the bases of the trapezoid is one-fifth larger than its height, the second base is 1 cm larger than its height. Find the dimensions of the trapezoid if its area is 115 cm2
  • Find two
    eq222 Find two consecutive natural numbers whose product is 1 larger than their sum. Searched numbers expressed by a fraction whose numerator is the difference between these numbers and the denominator is their sum.
  • Diameters of circles
    circle5 How many percent of the area of a larger circle is a smaller circle if the smaller circle has a diameter 120 mm and a larger one has a diameter 300 mm?
  • Shoes and slippers
    prezuvky Shoes were three times as many as slippers. If shoes were cheaper by 120, they would be twice as expensive as slippers. How much shoes cost and how much slippers?