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The rank of matrix in echelon form is …. …the number of row containing non-
zero elements.
A) less than
B) equa

By Abigail

The rank of matrix in echelon form is …. …the number of row containing non-
zero elements.
A) less than
B) equal to
C) greater than
D) none of these​

About the author
Abigail

Mr. Mendoza invests in five stocks. The table shows the growth in stock prices in dollars at the end of a trading day.

(ii) cos(180° – A) + cos (180° + B) + cos(180° + C)
– sin(90° + D) = 0​

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