Find the conjugates of the following complex numbers:

Given complex number is


Let us convert this to the standard form a+ib




We know that i2=-1




Multiplying and dividing with 2-i




We know that i2=-1





a+ib=2-4i


We know that the complex conjugate of a complex number a+ib is a-ib


a-ib=2+4i


the conjugate of is 2+4i.


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