Maths Crossword

1. If A is a matrix of order 3x3, then the number of minors in determinant of A are -
6. Empty Relation is also called____ relation
8. ______ is what remains after removal of a row and column from a matrix
12. Range of a relation is always a subset of ________
15. A relation in a set A is an/a _________ relation if R is reflexive, symmetric and transitive
17. A matrix whose determinant is zero
18. The number of functions in a matrix
20. a matrix type whose inverse doesn’t exist
21. A function is invertible only if the function is ______

2. The _______ matrix has 1s on the diagonal and 0s off the diagonals
3. A matrix which has only one row
4. the ______ is the transpose of the matrix of the cofactors Injective function One-one function is also called as ______
5. A matrix is always equal to its transpose
7. The set of input values in a relation
9. The set of output values in a relation
10. Union of equivalence classes gives ________
11. Let L denote the set of all straight lines in a plane. Let a relation R be defined by lRm if and only if l is perpendicular to m for all l, m belongs to L. Then R is _____
13. A diagram used to determine whether a relation is or is not a function
14. Product All the ordered pairs (a,b) such that a belongs to A and b belongs to B is called _____________
16. Onto function also called _________
19. only these type of matrices have determinants _____