power 4dPower4d adalah situs togel on terlengkap dengan pilihan permainan 4D dengan layanan 24 Jam tim support kami. Raih hadiah jutaan rupiah langsung ke rekening.To 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