Problema Solution
Can you please help me to find the inverse of the function if it exists.
f(z)=sqrt(3z+12).
Thank you
Answer provided by our tutors
f(z)=sqrt(3z+12).
Let f(z)=y.
y=sqrt(3z+12).
squarring both sides
y^2=3z+12.
3z=y^2-12.
z=(y^2-12)/3..
Now for finding inverse function interchange z and x.
f^-1(z)=y=(z^2-12)/3.