robrod75
20.09.2020 •
Mathematics
How can we get rid of i in the denominator?
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Ответ:
When you have an imaginary number in the denominator multiply the numerator and the denominator by the conjugate of the denominator.
Ответ:
9(9b+2)
Step-by-step explanation:
The words 'the sum of' mean parenthesis.
And so 9 would be outside the parenthesis and then 9b and 2 would be inside.