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Asked by
Dan
The function f(x) = x^3 + x an inverse. Compute f^-1(0) and f^-1(2). Hint: Do not try to evaluate f^-1 explicitly.
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Answered by
Reiny
For f^-1(10),
10 = x^3 + x
by quick inspection, x = 2
so f^-1(10) = 2
similarly for f-1(2),
2 = x^3 + x --> x=1
so f^-1(2) = 1
Answered by
Dan
i don't understand what you did
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