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jeyde205

  • 3 years ago

(1+3i) (1-i) ?

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  1. 3psilon
    • 3 years ago
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    Foil \[1^{2} -i+3i-3i^{2}\] \[i^{2} = -1\] \[2i + 1 -(-3) = 4 + 2i\]

  2. 3psilon
    • 3 years ago
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    Get it ?

  3. jeyde205
    • 3 years ago
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    yeahh thank you

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