" 6.यूक्लिड Write the three identities of. "

Write down the identity matrix of order 2.

If A={a,b,c,d}, then on A . (i) write the identity relation I_(A) . (ii) write a reflexive relation which is not the identity relation.

If A={a,b,c,d}, then on A . (i) write the identity relation I_(A) . (ii) write a reflexive relation which is not the identity relation.

The number of ways in which 9 identical balls can be placed in three identical boxes is

The number of ways in which 9 identical balls can be placed in three identical boxes is

In identity: Three linear pairs.