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Answer:
  • x is a common variable in math. It could also possibly refer to the x-axis on a graph, and is often used as a symbol for multiplication.
  • "f(x) = ... " is the classic way of writing a function. For example f(x) = x+3, then f is the function, x is the input, (x+3) is the output.
  • sine (x), cosine (x), are functions in trigonometry
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Q: What Is The Meaning Of x In Math?
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