Question

No. 3. For any xϵR show that | - x| = |x|

No. 4. For any x,y ϵR, prove that |x + y| ≤ | x| +|y| and hence

deduce that |x-y| ≥ | x | - | y |​

Answer 1

Answer:

I am so sorry I didn't get a chance to

Step-by-step explanation:

thanks for your help in a couple weeks I will

I am going back to the hotel and the rest is the