Anonymous
Anonymous asked in Science & MathematicsEngineering · 8 years ago

how do I get from [1/((1/(80+j80))+(1/(20e^(-j90)))] to 22.6e^(-j81.9)?

This is a complex numbers problem for a circuits class.

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  • GRAHAM
    Lv 6
    8 years ago
    Favorite Answer

    Put the LHS all in cartesian form and collect common terms, then convert to polar form.

    First part of LHS requires multiplying top and bottom by the conjugate of the bottom i.e. (80-j80).

    This remove the j term from the denominator.

    Second part of LHS is converted using Re^(jθ)=Rcosθ+jRsinθ.

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  • 8 years ago

    magic

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