tlex081402 tlex081402
  • 01-09-2018
  • Mathematics
contestada

Evaluate the determinant for the following matrix: -4 -4 -3
3 3 -5
-5 2 -5
A. 75
B. -203
C. -263
D. -152

Respuesta :

sqdancefan
sqdancefan sqdancefan
  • 01-09-2018

A suitable calculator finds the determinant to be ...

... B. -203

_____

This can be calculated by hand by copying the first two columns to the right of the given matrix, then forming the sum of products of the downward diagonals and subtracting the sum of products of the upward diagonals.

... (-4)(3)(-5) +(-4)(-5)(-5) +(-3)(3)(2) -(-5)(3)(-3) -(2)(-5)(-4) -(-5)(3)(-4)

... = 60 -100 -18 -45 -40 -60

... = -203

Ver imagen sqdancefan
Answer Link

Otras preguntas

Erikson hypothesized that individuals pass through several psychosocial stages of development. how many stages are in erikson's psychosocial development theory?
Which shows the correct pathway of hormones within the body? bloodstream, target cells, glands target cells, glands, bloodstream glands, bloodstream, target
Read the excerpt from Act I, scene ii of Romeo and Juliet. Benvolio: At this same ancient feast of Capulet’s, 70 Sups the fair Rosaline, whom thou so lov’st, W
The term that refers to how often you exercise
Solve. G + 1/11 = 2/4 G = 1/44 G = 9/22 G = 13/22 G = 1/15
the number of months in 7 years
Read this excerpt and then answer the question that follows. Cannot we . . . say to woman: "We give to you the ballot, as your undisputed right as an American
what are two ways to organize sentences
△EFG≅△JKL. What is m∠L?
Both stimulants and depressants can be A) inhaled B) injected C) smoked D) all of the above