Anonymous
Anonymous asked in Science & MathematicsMathematics · 2 months ago

Help pls!!?

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1 Answer

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  • Rationalize the denominators

    2 * (5 + 3i) / ((5 - 3i) * (5 + 3i))  +  4 * (5 - 3i) / ((5 + 3i) * (5 - 3i)) =>

    2 * (5 + 3i) / (25 - 9i^2)  +  4 * (5 - 3i) / (25 - 9i^2) =>

    (10 + 6i) / (25 + 9) + (20 - 12i) / (25 + 9) =>

    (10 + 6i) / 34  +  (20 - 12i) / 34 =>

    (10 + 6i + 20 - 12i) / 34 =>

    (30 - 6i) / 34 =>

    (15 - 3i) / 17

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