Matrices: Basic (Matrix) Instinct True or False

1.	For this matrix, the following is true:->e₁₁ = 2 True False
2.	What's the coefficient matrix for the following system of equations? 3x – 4y = 2 x + 2y = 5-> True False
3.	For this matrix, find the determinant: ->12 True False
4.	What is the formula to find the determinant of a 2 × 2 matrix? ->ad – cb True False

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