Why (i × i) = –1 Changes Everything in Complex Numbers! ⚡ | Don’t Make This Mistake

Описание: Here’s the most common mistake students make when multiplying complex numbers! 😱
When you see 2i × 3i, it’s NOT +6 — it’s –6 because i × i = –1. This short explains exactly why and shows how that tiny minus sign changes your entire result. Perfect for mastering complex multiplication and avoiding exam errors!

📘 What You’ll Learn:

Why i × i = –1

Correct way to multiply imaginary terms

How a single sign changes your answer

Example: (2i × 3i) simplified step-by-step

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