Closure of Relations (Solved Problems) - Set 1

[@ananyapahwa9370]

doubt for the last question: why is it or and not and, a divides b and b divides a?

[@sakhawathossain8167]

Thanks a lot for uploading this series.
Please tell me the virtual board application you used in your tutorials.

[@vaibhavkurale5016]

Plz continue the data structure series 🙏🙏
Which helps us in placement 🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏🙏 plzzzzzz

[@lofimusic0312]

plz complete this course asap.

[@jatayubaxi4553]

Excellent

[@asishcodes]

Thanks

[@rajeshprajapati4863]

❤️❤️❤️

[@bhartibhatia2232]

In problem 2, will the answer be Z×Z as well???

[@crofux]

Same doubt

[@FlyBee07]

What does z mean here
And why he wrote z*z deep explanation plzzz

[@sktausifrahman1496]

they are just doing the cartesian product here

[@harshitchopra1551]

Z means integer and Z x Z means relation on Z

[@AB-iv4bq]

z*z represents the set of all integers