Problema Solution
Can you please help me to find the inverse of the function if it exists.
f(n)=5n^3-1.
Thank you!
Answer provided by our tutors
f(n)=5n^3-1.
Let f(n)=y=5n^3-1.
y=5n^3-1.
(y+1)=5n^3.
n^3 =(y+1)/5.
n=((y+1)/5)^1/3.
Now for inverse function interchange n and y.
f^-1(n) =y=((n+1)/5)^1/3.