Question 415948
y = cbrt(2x+1)
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1st: Interchange to get:
x = cbrt(2y+1)
cube both sides:
x^3 = 2y+1
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2y+1 = x^3
2y = x^3 -1
y = (x^3-1)/2
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That is the inverse.
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Cheers,
Stan H.