Question

prove that -1≤ r ≤1 ​

Answer 1

Answer:

Well ur qs is actually wrong cuz tht cant be a qs. But...

if r belongs from -1 to 1 or is equal to -1 or 1 then -1

-1≤r≤1.

So, r can either be less than or equal to 1 or greater than or equal to -1.