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Popular >

expand (1-i)^2

Solution

expand

(1 - i)^{2}

Solution

- 2 i

Solution steps

(1 - i)^{2}

Apply Perfect Square Formula:

(a - b)^{2} = a^{2} - 2 ab + b^{2}

(1 - i)^{2} = 1^{2} - 2 \cdot 1 i + i^{2}

= 1^{2} - 2 \cdot 1 i + i^{2}

Simplify

1^{2} - 2 \cdot 1 i + i^{2} : - 2 i

= - 2 i

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Frequently Asked Questions (FAQ)

What is expand (1-i)^2 ?
The solution to expand (1-i)^2 is -2i