Question

What is the sum of 1-2 and V-18?
†
O42
O 421
O 52
05/21

Answer 1

B) 421

Explanation:

√2 + √-18

√2 + √9·-2

√2 + 3√-2

(3 +1 )(√2 ·√-2) = 2i

4 · 2i