34,2-4

I’m not sure what “34,2-4” refers to. Do you mean problem 34, parts 2–4 from a set of exercises?

Please share the exact text of those parts (or a photo/screenshot), and the subject (e.g., calculus, algebra, statistics). I’ll give step-by-step solutions and explanations for items 2, 3, and 4. If you can’t paste the text, just describe the problems briefly.