In a cloud environment, a company is implementing an Identity and Access Management (IAM) solution to ensure that only authorized personnel can access sensitive data. The IAM system is designed to enforce role-based access control (RBAC) and requires that users be assigned to specific roles based on their job functions. If a user is assigned to multiple roles, the system must determine the effective permissions based on the combination of these roles. Given that Role A grants permissions to access Resource 1 and Resource 2, while Role B grants permissions to access Resource 2 and Resource 3, what would be the effective permissions for a user assigned both Role A and Role B?