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1/(4+i5) = (4-i5)/(16+25)

= (4/41)-i(5/41)

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How can you convert a number as 227.5 to standard form?

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What is the standard form of negative square root of 5i?

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That already is in standard form.


What is the convert number of 28.6 to the standard notation?

28.6 is the standard notation. The standard form(also called scientific notation) is: 2.86 × 101


How do change a complex number to its standard form?

It isn't clear in what form you have the complex number. But you can change it from the form (absolute value, angle) to the form (real part + imaginary part) using the polar-rectangular conversion available on scientific calculators (and the other way round, with the rectangular-polar conversion). Note that a complex number in the form (real part + imaginary part) is most appropriate for addition and subtraction, while a complex number of the form (absolute value, angle) is most appropriate for multiplication or division, so depending on the operations, you may want to convert back and forth several times.


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