(1) chatGTP is not a calculator. A calculator resolutely computes the exact numerical answer (modulo finite bits and rational numbers etc). ChatGTP is more stochastic. sometimes it's right, maybe a lot of the time, but no promises! (2) said student is taking an exam to find answers without the benefit of ChatGTP. Thusly doing exercises in a ChatGTP will not benefit the exam in the same way someone who only uses the calculator will suck at mental math. similar to what some of us may have seen "no calculators allowed on math exam"

but the big hangup is that "stochastically correct/incorrect" part. Can't count on it, still need skillz. Maybe when straberry/q* drops things will change in this regard