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If A is a matrix of order 3 × 4 , then each row of A has
  • a)
    12 elements
  • b)
    3 elements
  • c)
    4 elements
  • d)
    7 elements.
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
If A is a matrix of order 3×4 , then each row of A hasa)12 elemen...
 
, therefore matrix A has 4 elements in each row
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Most Upvoted Answer
If A is a matrix of order 3×4 , then each row of A hasa)12 elemen...
Explanation:

A matrix is a rectangular array of numbers or elements which are arranged in rows and columns. The order of a matrix refers to the number of rows and columns it has. In the given question, the matrix A is of order 34, which means that it has 34 rows and an unknown number of columns.

To find out the number of elements in each row of matrix A, we can use the fact that the total number of elements in a matrix is equal to the product of its number of rows and columns.

Let the number of columns in matrix A be x. Then, we have:

Number of elements in A = 34x

But we also know that each row of A has the same number of elements, say y. Therefore, we can write:

Number of elements in A = 34y

Equating the two expressions for the number of elements in A, we get:

34x = 34y

Dividing both sides by 34, we get:

x = y

This means that each row of matrix A has the same number of elements as the number of columns in A. Therefore, the answer is option C, which says that each row of A has 4 elements.

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Explanation:

A matrix is a rectangular array of numbers or elements which are arranged in rows and columns. The order of a matrix refers to the number of rows and columns it has. In the given question, the matrix A is of order 34, which means that it has 34 rows and an unknown number of columns.

To find out the number of elements in each row of matrix A, we can use the fact that the total number of elements in a matrix is equal to the product of its number of rows and columns.

Let the number of columns in matrix A be x. Then, we have:

Number of elements in A = 34x

But we also know that each row of A has the same number of elements, say y. Therefore, we can write:

Number of elements in A = 34y

Equating the two expressions for the number of elements in A, we get:

34x = 34y

Dividing both sides by 34, we get:

x = y

This means that each row of matrix A has the same number of elements as the number of columns in A. Therefore, the answer is option C, which says that each row of A has 4 elements.
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Community Answer
If A is a matrix of order 3×4 , then each row of A hasa)12 elemen...
Its order is 3*4 which means it has three rows and four columns So every row has four elements
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If A is a matrix of order 3×4 , then each row of A hasa)12 elementsb)3 elementsc)4 elementsd)7 elements.Correct answer is option 'C'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about If A is a matrix of order 3×4 , then each row of A hasa)12 elementsb)3 elementsc)4 elementsd)7 elements.Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If A is a matrix of order 3×4 , then each row of A hasa)12 elementsb)3 elementsc)4 elementsd)7 elements.Correct answer is option 'C'. Can you explain this answer?.
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