1/(4+i5) = (4-i5)/(16+25)
= (4/41)-i(5/41)
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The standard from for a complex number is a + bi, where a and b can have any real value including zero and i = √-1
Multiply the numerator and denominator by the complex conjugate of the denominator ... [ root(2) minus i ]. This process is called 'rationalizing the denominator'.
Not necessarily.
-4=4ei*pi
Yes, a+bi is standard form for a complex number. The numbers (a) and (b) are both real and i is √(-1)
The standard form of a complex number is a+bi. So the standard form of the negative square root of 5i is 0-√(5i).
That already is in standard form.
28.6 is the standard notation. The standard form(also called scientific notation) is: 2.86 × 101
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.
To convert ( 1.87 \times 100000 ) to standard form, you multiply 1.87 by 100,000, resulting in 187,000. The standard form representation of this number is ( 1.87 \times 10^5 ).
The standard form (or scientific notation) for the number 210064050 is (2.10064050 \times 10^8). In standard form, the number is expressed as a coefficient between 1 and 10 multiplied by a power of ten, which indicates the position of the decimal point. Here, the decimal is moved 8 places to the left to convert the number into standard form.