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Q: The product of two upper triangular matrices is upper triangular?
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How do you find the rank of product of two matrices?

just make the matrices upper triangular by making the values below the digonal zero,and then find how many minors can be calcuted.......


These matrices represent the coordinates of two figures in the plane. Is the product of these matrices defined Answer yes or no?

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The statement that the rank of product of two matrices cannot exceed the rank of either factor is a true statement. The rank of a matrix is the largest number of linearly independent rows or columns. The column rank is equal to the row rank in every matrix.


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The product of a p x q and a r x s matrix is defined only if q = r and, if so, it is a p x s matrix.


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If the product of two matrices is the identity matrix they are?

If the product of two matrices is the identity matrix then one matrix is the inverse or reciprocal of the other matrix. EXAMPLE A =(4 1) A-1 = (0.3 -0.1) then AA-1 = (1 0) .....(2 3)......... (-0.2 0.4)................... (1 1) The dots simply maintain the spacing and serve no other purpose.


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Do triangular prisms always have two bases that are equilateral?

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