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professor190 [17]
3 years ago
14

PLEASE HURRY!!!!!!

Mathematics
1 answer:
Soloha48 [4]3 years ago
6 0

Expand the binomial:

(√2/5 + 5/2 <em>i</em> )² = (√2/5)² + 2<em>i</em> (√2/5) (5/2) + (5/2 <em>i</em> )²

… = 2/25 + √2 <em>i</em> + 25/4 <em>i</em> ²

… = -617/100 + √2 <em>i</em>

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