Question

alguém???

i^10 + i^53 + i^72 + i^-37 tem valor:
a)0 b)1 c)-i d)-1 e)i

Answer 1

Boa tarde

regra

i^(0+4k) = 1
i^(1+4k) = i
i^(2+4k) = -1
i^(3+4k) = -i

i^10 + i^53 + i^72 + i^-37 = -1 + i + 1 - i  = 0 (A)