Question

What is - 4i ^ 19, simplify

Answer 1

Answer:

$"i"$

Step-by-step explanation:

$i =\sqrt{-1} \\i^{2}= -1\\\\i^{3}= -i\\\\i^{4}= 1\\\\i^{5}= i$

the cycle repeats every 4

19/4 = 4.75

16 is divisible by 4 plus three more

thus  $i^{19} = -i$  but you problem has a minus in front  so "i"