What is complex conjugate of #5-7i#?

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1 Answer
mason m
Dec 8, 2015

#5+7i#

Explanation:

To find a complex conjugate, simply change the sign of the imaginary part (the part with the #i#). This means that it either goes from positive to negative or from negative to positive.

As a general rule, the complex conjugate of #a+bi# is #a-bi#.

Therefore, the complex conjugate of #5-7i# is #5+7i#.

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