Use DeMoivre's Theorem to Find the Indicated Power $( 1 + i ) ^ { 20 }$

Multiple Choice

Use DeMoivre's Theorem to find the indicated power. $( 1 + i ) ^ { 20 }$

A) $1024$
B) $512 i$
C) $- 1024$
D) $256$
E) $- 256 i$