?Which property of determinants is illustrated by the equation 
?
?
A. ?If a multiple of a row is added to another row in a matrix and then the constant is added to a row, the determinant of the matrix is unchanged.
B. If a non-zero constant is added to a row of a matrix, the determinant of the matrix is unchanged.
C. If the two columns of the matrix are interchanged, the determinant of the matrix is unchanged.
D. If a multiple of a row is added to another row of a matrix, the determinant of the matrix is unchanged.
E. If 
times a row of a matrixis added to another row of a matrix, the determinant of the matrix is multiplied by c.
Answer: D
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Use a graphing calculator to solve the problem.Let f(x) = sin 
+ cos x on the interval I = (0, 7). Use the graph to estimate where f''(x) < 0 on I.
A. (0, 1.77) ? (4.52, 7) B. (0, 5.77) C. (1.77, 4.52) D. (0, 3.14) ? (3.14, 7)
Use reduction formulas to evaluate the integral.
A. - 
cot2 3x + 
cot 3x - x + C
B. - 
cot3 3x + 
cot 3x + C
C. - 
cot3 3x - 
cot 3x + x + C
D. - 
cot3 3x + 
cot 3x + x + C
Identify the terms in the given expression.-4 + 6r - 6rt
A. -4, 6r, -6r, t B. -4, 6r, -6rt C. 4, 6r, 6rt D. -4, 6r, 6rt
Graph the parabola. State the vertex of the parabola.y = x2 - 2x + 2
A. vertex (1, -3)
B. vertex (-1, 1)
C. vertex (-1, 3)
D. vertex (1, 1)