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**Chapter 3 of F.Sc/I.Cs Part 1 Math is based on Number System.**

## Math Chapter 3 MCQs Class 11

## Results

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### #1. The principal diagonal of a square matrix is also called:

### #2. A is non-singular matrix then AA^-1 is:

### #3. Let A be a non-zero matrix if r is the number of non-zero rows when it is reduced to the reduced echelon form, then r is called the:

### #4. Let a be any matrix then (A^t)^t =

### #5. If the matrix has only one row but more than one column, the matrix is:

### #6. A equation of the form ax + by = c is called:

### #7. If ‘A’ is a square matrix of order 3 x 3 then |KA| equals:

### #8. A square matrix A = [aij] is called skew symmetric if:

### #9. If the coefficient matrix of the homogenous system is singular then the solution is:

### #10. If A and B are m x n matrices and c is a scalar then c(A + B) = cB, this property is called:

### #11. If the order of A is m x p and order if B is p x n then order of AB is:

### #12. Matrix multiplication is:

### #13. If ‘A’ is multiplicative inverse of ‘B’ then:

### #14. If |A| is the determination of a square matrix A then |A| is:

### #15. If the system has no solution, then the system is:

### #16. If ‘A’ is a square matrix of order 3 x then |A| = ______

### #17. (AB)^t = _____

### #18. Let A and B are two matrices of same order then (A+B)^t = _____

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