Question

If f(x) = sinx, then f(3x) = ?
a. 3 f(x) – 4f(x)
b. 3 f(x) – 4f? (x)
c. 4 f(x) – 3 f(x)
d. 4 f(x) + 3 f(x)​

Answer 1

Answer:

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