Question

which of the following is a variable?

1. A
2. -3
3. 0
4. 4​

Answer 1

Answer:

A

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Answer 2

A is a variable

A symbolic variable is a string of characters that you define as a symbol. Because thevariable is a symbol, you can assign different values to it at different times. By assigning different values, you can do the same processing with different data