Answer:

Step-by-step explanation:
We are given the following function in the question:

We have to derivate the given function.
Formula:

The derivation takes place in the following manner


Answer:
"The product of a rational number and an irrational number is SOMETIMES irrational." If you multiply any irrational number by the rational number zero, the result will be zero, which is rational. Any other situation, however, of a rational times an irrational will be irrational
A better statement would be:
"The product of a non-zero rational number and an irrational number is irrational

just a plain vanilla substitution
Is there a picture I can look at?