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marissastewart533
16.10.2019 •
Mathematics
To rationalize the denominator of 5-√7/9-√14, you should multiply the expression by which fractions?
5+√7
9-√14
9-√14
9-√14
9+√14
9+√14
√14
√14
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Ответ:
Answer
9+√14
Explanation
To Rationalize the denominator of 5-√7/9-√14.
To rationalize this we multiply both the denominator and denominator by the conjugate of the denominator.
The denominator is 9-√14 and its conjugate is (9+√14).
(5-√7)/(9-√14) = (5-√7)(9+√14)/(9-√14)(9+√14)
= (5-√7)(9+√14)/(9²-14)
= (45 + 5√14 - 9√7 - √98)/(81-14)
= (45 + 5√14 - 9√7 - √98)/67
= (45 + 5√14 - 9√7 - 7√2)67
This is the rationalized expression.
The denominator is (9-√14) and its conjugate is (9+√14).
Ответ:
the answer would be y^6/x^2
Step-by-step explanation:
so (Y) to the sixth power over (X) to the second power