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arg(-2-i) = sqrt[22 + 12] = sqrt(5)

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11y ago

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The conjugate of the complex number 3 plus 2i is?

It is 3 minus 2i


How do you divide complex numbers?

When dividing complex numbers you must:Write the problem in fractional formRationalize the denominator by multiplying the numerator and denominator by the conjugate of the denominator.You must remember that a complex number times its conjugate will give a real number.a complex number 2+2i. the conjugate to this is 2-i1. Multiply both together gives a real number.(2+2i)(2-2i) = 4 -4i + 4i + (-4i2) (and as i2 = -1) = 8To divide a complex number by a real number simply divide the real parts by the divisor.(8+4i)/2 = (4+2i)To divide a real number by a complex number.1. make a fraction of the expression 8/(2+2i)2. multiply by 1. express 1 as a fraction of the divisor's conjunction. 8/(2+2i)*(2-2i)/(2-2i)3. multiply numerator by numerator and denominator by denominator.(16-16i)/84. and simplify 2-2i


What is the magnitude of the complex number 8 plus 2i?

8.2462 (rounded)


What is conjugation of 7-2i?

The conjugate of a complex number can be found by multiplying the imaginary part by -1, then adding the "real" part back. (-2i) * -1 = 2i, so the conjugation is 7+2i


Find the reciprocal of the complex number 3 plus 2i Give your answer in the usual a plus bi form?

It is 3/13 - 2/13*i


What is the complex conjugate of -12 over 2i-6?

2i+6


Is The sum of two complex numbers is sometimes a real number.?

Sure, if the imaginary part is opposite. For example:(3 + 2i) + (5 - 2i) = 8


Convert the following complex number into its polar representation: 2 + 2i?

2sqrt2(cos45 + i * sin45)


Can you figure out two complex numbers that when mulitplied together become a real number?

3 and 5 are both complex numbers, and if you multiply them together, you get 15, which is a real number. If you were looking for two non-real complex numbers, then any pair of complex conjugates will work. For example, 5+2i times 5-2i is 29.


What is the differrent of imaginary numbers to complex numbers?

Imaginary number is a number that consist of only Imaginary part. Such as i, 40i, 1/2i, etc. While the difference between the imaginary numbers and the complex numbers are that complex number also contains Real numbers, and can be written as a + bi. For example, 30+i, 1/2+1/2i, etc.


Which is the correct notation for the complex number 113-square root-68?

113-2i sqr 17


What is the real part of the complex number -2i?

Ah, what a lovely question! When we have a complex number like -2i, we can see that the real part is 0. You see, the real part is the coefficient of the term with the variable "i," and in this case, there isn't a real part, so it's simply 0. Just a happy little zero floating peacefully in the complex plane.