Answer:
f(3) = (-∛150)/10
Step-by-step explanation:
Put 3 where x is and evaluate. If you don't want the decimal, you can rationalize the denominator to get an exact form.
f(3) = ∛(3/(-7·3+1)) = ∛(-3/20)
= -∛(3·50/(20·50)) = (-∛150)/10 ≈ -0.5313292845913...
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Multiplying numerator and denominator by 50 makes the denominator 1000, a perfect cube.
f’(x) = x -2/7
Let f(x)= y
Thus;
y = x + 2/7
x = y-2/7
So the inverse f’(x) = x - 2/7
