Question

If X and Y are matrices of order 2×3 what is the order of 7X - 5Y

Answer 1

Answer:

7x-5y is in the order of 2*3.

Step-by-step explanation:

The order of 7x-5y matrix is 2*3.

Because matrix x is in the order of 2*3 and matrix y is in the order of 2*3.

Now if we multiply 7 with each of the element of the matrix then the order remain same.

Same things happens for the y matrix.

So 7x is also in the order of 2*3 and 5y is in the order of 2*3.

So 7x-5y is in the order of 2*3.

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Answer 2

Answer:

The matrix obtained by 7X - 5Y will be of order 2x3

Step-by-step explanation:

Given :- matrix  X and Y are of order 2x3 .

To find :- order of 7X - 5Y = ?

Solution :-

concept :-

• The addition/subtraction of matrices are possible only when the order of the matrix is equal ,
• for addition/subtraction of 7X - 5Y , order of X and Y matrix must be same , and so they are 2 x 3 .
• hence the matrix obtained by the above operation , will give us the matrix of order 2 x 3 .

Answer :- the matrix obtained by 7X - 5Y will be of order 2x3 .

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