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20 November, 05:15

X+2y=5

X-3y=7

What is the second row of entries for the system determinant?

A) 1,-3

B) 2,-3

C) 5,7

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Answers (1)
  1. 20 November, 05:19
    0
    A) 1,-3

    Step-by-step explanation:

    X+2y=5

    X-3y=7

    To write a determinant we take the coefficient of the variables

    To get first row we take the coefficients of x and y from the equation x+2y = 5

    x or 1x are same

    1x+2y = 5

    The coefficient of x is 1 and coefficient of y is 2

    So first row is 1, 2

    We do the same for second row

    To get second row we take the coefficients of x and y from the equation x-3y = 7

    1x - 3y = 7

    The coefficient of x is 1 and coefficient of y is - 3

    So second row is 1, - 3
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