On arithmetic progression and Geometric Sequence

Is arithmetic plus arithmetic arithmetic arithmetic? Yes Subtraction, right? Yes Multiplication, right? No. Except, right? Yes, constant sequence

Is equal ratio plus equal ratio equal? Yes Subtraction, right? Not necessarily. If you subtract the same geometric series, it is the multiplication of the constant series 0, 0, 0, 0 ..., right? Yes Except, right? Yes, constant sequence

Is the equal difference plus equal ratio equal? No. Subtraction, right? No. By, right? Not necessarily, arithmetic progression can't have 0, otherwise it is proportional. Except, right? no

Open and walk, right? Equal proportion of power or equal proportion.

Also, by the way, give some common, deformed arithmetic ratios.

Equal ratio, equal difference.

If bn is poor, there is a ratio in which the power of bn is equal to A..