power 4dPOWER4D adalah Situs Slot On terpercaya dan bandar Togel terbaik di TOP dengan games terlengkap dan resmi, minimal withdraw 50000 dan deposit minimal 10.000 daftar sekarangTo find the focal length of the combination of two thin lenses in contact, we can follow these steps: Step 1: Identify the Powers of the Lenses We have two lenses: - Lens 1 has a power ( P1 = +4