A 1 B 2 C 3d3e5f6g7h8i 2025. This question uses the alphabet encoding a=1, b=2, c=3,. Prove that $$ (1+a^2)(1+b^2)(1+c^2)\geq8 $$ approach 1:.

Convert numbers to letters in various formats. If the encoding function is y=3x + 4 and the code numbers are 43, 7, 25, and 19