Question

Se /5 + k . i / = 5 √2 então:
a)k=+/- 5
b)k=5
c)k=10
d)k=+/-1

Answer 1

Oi

5² + k² = 5²*√2²

25 + k² = 50

k² = 25

k = +/- 5 (A)

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