if-a-group-contains-all-of-the-points-that-you-collect-then-its-a-closed-group-prove-this-in-complex-number-

Question Number 127537 by mohammad17 last updated on 30/Dec/20

i f a g r o u p c o n t a i n s a l l o f t h e p o i n t s t h a t

y o u c o l l e c t t h e n i t s a c l o s e d g r o u p

p r o v e t h i s i n c o m p l e x n u m b e r ?

Commented by mohammad17 last updated on 30/Dec/20

? ? ? ?