Q. A graph is planar if and only if it does not contain ________. (Solved)
1. subgraphs homeomorphic to k3 & k3,3
2. subgraphs isomorphic to k5 or k3,3
3. subgraphs isomorphic to k3 & k3,3
4. sub graphs homeomorphic to k5 or k3,3
- d. sub graphs homeomorphic to k5 or k3,3