rachelkorkees
25.06.2019 •
Mathematics
How to rationalize the denominator of sqrt(a)/sqrt(a)-2
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Ответ:
√a(√a + 2) a - 2√a
=
a - 4 a - 4
Step-by-step explanation:
I am assuming that by "sqrt(a)/sqrt(a)-2" you meant:
√a
√a - 2
To rationalize the denom., multiply numerator and denom. of this fraction by the conjugate of √a - 2, which is √a + 2:
√a(√a + 2)
a - 4
Ответ:
A
Step-by-step explanation: