SSC CGL Exam > SSC CGL Videos > General Intelligence and Reasoning for SSC CGL > Matrix Tricks
Matrix Tricks Video Lecture | General Intelligence and Reasoning for SSC CGL
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177 videos|126 docs|197 tests
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FAQs on Matrix Tricks Video Lecture - General Intelligence and Reasoning for SSC CGL
| 1. What are some commonly used matrix operations? |  |
Ans. Some commonly used matrix operations include addition, subtraction, multiplication, and finding the determinant and inverse of a matrix.
| 2. How can I add two matrices together? | |
Ans. To add two matrices together, you need to ensure that they have the same dimensions. Simply add the corresponding elements of both matrices to obtain the resulting matrix.
| 3. What is the determinant of a matrix used for? | |
Ans. The determinant of a matrix is used to determine various properties of the matrix, such as whether it is invertible or singular. It is also used to solve systems of linear equations and calculate the area or volume of geometric shapes.
| 4. How can I find the inverse of a matrix? | |
Ans. To find the inverse of a matrix, you need to check if the determinant of the matrix is non-zero. If it is non-zero, you can use various methods like the adjugate matrix method or the row reduction method to find the inverse. If the determinant is zero, the matrix is singular and does not have an inverse.
| 5. Can matrices be multiplied together? If so, how? | |
Ans. Yes, matrices can be multiplied together. To multiply two matrices, the number of columns in the first matrix should be equal to the number of rows in the second matrix. The resulting matrix will have the same number of rows as the first matrix and the same number of columns as the second matrix.
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Nov 22, 2024 Last updated |
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