yair7
18.01.2022 •
Mathematics
Write this expression so that its denominator, if any, is a positive integer.
2/(3+sqrt(7))
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Ответ:
The Answer is 3 - sqrt7
Step-by-step explanation:
2/3 + sqrt7 the starting equation
You multiply it by the conjugate which is 3 - sqrt7
= 2(3 - sqrt7) / (3 + sqrt7) (3 - sqrt7) the equation after you multiply by 3 - sqrt7
(3 + sqrt7) (3 - sqrt7) = 2
= 2(3 - sqrt7) / 2 the equation after you simplify (3 + sqrt7) (3 - sqrt7)
Divide out the 2's
= 3 - sqrt7/1 the equation after you divide out the 2's
= 3 - sqrt7 is THE ANSWER
Ответ:
A (2, 2) B (2, 4) C (4, 6) D (6, 4) E (6, 2)
Step-by-step explanation: