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Which of the following statement is not true?
A. If A is nXn matrix then det(A) = det(A)
B. If A & B are nXn matrice

By Julia

Which of the following statement is not true?
A. If A is nXn matrix then det(A) = det(A)
B. If A & B are nXn matrices then det(AB) = det(A). det(B)
C. A square matrix A is invertible if and only if det(A) = 0
D. If A is a square matrix of order n & kis any non-zero scalar then
det(ka) = k” det(A)​

About the author
Julia

III. Find the H.C.F. by long division method:
084, 144
120, 168
430, 516, 817
632, 790, 869
291, 582, 776

each side of equilatral triangle is 22cm.than what is the area of that triangle​

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