Home
Class 9
MATHS
For a matrix {:[(4,1,2),(2,4,3),(5,8,6)]...

For a matrix `{:[(4,1,2),(2,4,3),(5,8,6)]:}` what is the second row and third column element ?

Text Solution

Verified by Experts

The correct Answer is:
3
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MATRICES

    PEARSON IIT JEE FOUNDATION|Exercise SHORT ANSWER TYPE QUESTIONS|9 Videos

  • MATRICES

    PEARSON IIT JEE FOUNDATION|Exercise Essay Type Questions|5 Videos

  • MATRICES

    PEARSON IIT JEE FOUNDATION|Exercise TEST YOUR CONCEPTS VERY SHORT ANSWER TYPE QUESTIONS|1 Videos

  • LOGARITHMS

    PEARSON IIT JEE FOUNDATION|Exercise Level 3 MCQ|15 Videos

  • NUMBER SYSTEMS

    PEARSON IIT JEE FOUNDATION|Exercise Level 3|15 Videos

Similar Questions

Explore conceptually related problems

In the matrix [(2,-1,4),(-3,0,5)] , the element in the second row , third column is ______.

In the matrix [{:(2,-1,4),(-3,0,5):}] , the element in the second row, third column is _______

Knowledge Check

  • In the matrix [{:(2,-1,4),(-3,0,5):}] , the element in the second row and third column is __________

    A
    5
    B
    0
    C
    3
    D
    4

  • In the matrix [(2,-1,4),(-3,0,5)] , the element in the second row , third column is ______.

    A
    5
    B
    0
    C
    -3
    D
    4

  • Elementary Transformation of a matrix: The following operation on a matrix are called elementary operations (transformations) 1. The interchange of any two rows (or columns) 2. The multiplication of the elements of any row (or column) by any nonzero number 3. The addition to the elements of any row (or column) the corresponding elements of any other row (or column) multiplied by any number Echelon Form of matrix : A matrix A is said to be in echelon form if (i) every row of A which has all its elements 0, occurs below row, which has a non-zero elements (ii) the first non-zero element in each non –zero row is 1. (iii) The number of zeros before the first non zero elements in a row is less than the number of such zeros in the next now. [ A row of a matrix is said to be a zero row if all its elements are zero] Note: Rank of a matrix does not change by application of any elementary operations For example [(1,1,3),(0,1,2),(0,0,0)],[(1,1,3,6),(0,1,2,2),(0,0,0,0)] are echelon forms The number of non-zero rows in the echelon form of a matrix is defined as its RANK. For example we can reduce the matrix A=[(1,2,3),(2,4,7),(3,6,10)] into echelon form using following elementary row transformation. (i) R_2 to R_2 -2R_1 and R_3 to R_3 -3R_1 [(1,2,3),(0,0,1),(0,0,1)] (ii) R_2 to R_2 -2R_1 [(1,2,3),(0,0,1),(0,0,0)] This is the echelon form of matrix A Number of nonzero rows in the echelon form =2 rArr Rank of the matrix A is 2 Rank of the matrix [(1,1,1,-1),(1,2,4,4),(3,4,5,2)] is :

    A
    1
    B
    2
    C
    3
    D
    4

    • Similar Questions

    Explore conceptually related problems

    If A = [{:(0,2,0),(0,0,3), (-2,2,0):}] and B =[{:(1,2,3),(3,4,5),(5,-4,0):}], then the element of third row and column in AB will be

    Statement -1 The value of the determent |{:(1,2,3),(4,5,6),(7,8,0):}|ne 0 Statement -2 Neither of two rows rows or columns of |{:(1,2,3),(4,5,6),(7,8,0):}| is identical.

    Elementary Transformation of a matrix: The following operation on a matrix are called elementary operations (transformations) 1. The interchange of any two rows (or columns) 2. The multiplication of the elements of any row (or column) by any nonzero number 3. The addition to the elements of any row (or column) the corresponding elements of any other row (or column) multiplied by any number Echelon Form of matrix : A matrix A is said to be in echelon form if (i) every row of A which has all its elements 0, occurs below row, which has a non-zero elements (ii) the first non-zero element in each non –zero row is 1. (iii) The number of zeros before the first non zero elements in a row is less than the number of such zeros in the next now. [ A row of a matrix is said to be a zero row if all its elements are zero] Note: Rank of a matrix does not change by application of any elementary operations For example [(1,1,3),(0,1,2),(0,0,0)],[(1,1,3,6),(0,1,2,2),(0,0,0,0)] are echelon forms The number of non-zero rows in the echelon form of a matrix is defined as its RANK. For example we can reduce the matrix A=[(1,2,3),(2,4,7),(3,6,10)] into echelon form using following elementary row transformation. (i) R_2 to R_2 -2R_1 and R_3 to R_3 -3R_1 [(1,2,3),(0,0,1),(0,0,1)] (ii) R_2 to R_2 -2R_1 [(1,2,3),(0,0,1),(0,0,0)] This is the echelon form of matrix A Number of nonzero rows in the echelon form =2 rArr Rank of the matrix A is 2 The echelon form of the matrix [(1,3,4,3),(3,9,12,9),(1,3,4,1)] is :

    Elementary Transformation of a matrix: The following operation on a matrix are called elementary operations (transformations) 1. The interchange of any two rows (or columns) 2. The multiplication of the elements of any row (or column) by any nonzero number 3. The addition to the elements of any row (or column) the corresponding elements of any other row (or column) multiplied by any number Echelon Form of matrix : A matrix A is said to be in echelon form if (i) every row of A which has all its elements 0, occurs below row, which has a non-zero elements (ii) the first non-zero element in each non –zero row is 1. (iii) The number of zeros before the first non zero elements in a row is less than the number of such zeros in the next now. [ A row of a matrix is said to be a zero row if all its elements are zero] Note: Rank of a matrix does not change by application of any elementary operations For example [(1,1,3),(0,1,2),(0,0,0)],[(1,1,3,6),(0,1,2,2),(0,0,0,0)] are echelon forms The number of non-zero rows in the echelon form of a matrix is defined as its RANK. For example we can reduce the matrix A=[(1,2,3),(2,4,7),(3,6,10)] into echelon form using following elementary row transformation. (i) R_2 to R_2 -2R_1 and R_3 to R_3 -3R_1 [(1,2,3),(0,0,1),(0,0,1)] (ii) R_2 to R_2 -2R_1 [(1,2,3),(0,0,1),(0,0,0)] This is the echelon form of matrix A Number of nonzero rows in the echelon form =2 rArr Rank of the matrix A is 2 Rank of the matrix [(1,1,1),(1,-1,-1),(3,1,1)] is :

    The rank of the matrix {:[(1,2,3,0),(2,4,3,2),(3,2,1,3),(6,8,7,5)]:} , is

    Home
    Profile