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Square of (1-2i)please answer me fast |
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Answer» Answer: to FIND ( 1 -2i)² = 1² + (-2i)² -2.1.-2i = 1 +2i² +4I = 1 + 2 (-1) +4i { since, i = √-1 => i² = -1} = 1 -2 +4i = -1 +4i.this is the required answer. I hope it will help you.Step-by-step explanation: formula USED ; ( a -b)² = a² + b² -2AB.... |
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