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OpenStudy (anonymous):
If f(x) = log2 (x + 4), what is f−1(3)?
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OpenStudy (anonymous):
the choices are 0,2,4,and 8
OpenStudy (anonymous):
just take the derivative of f(x)... if that's a problem, split the log2(x+4) into log10(x+4)/log10(2)... or change the base 10 into whatever other base you prefer and work it out then
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