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Santa3310
@Santa3310
July 2022
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найдите область определение функции y=корень4-x^2/x-1
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mikael2
Verified answer
4-x²/x-1≥0 (2-x)(x+2)/x-1≥0 (x-2)(x+2)/x-1≤0
---------------- -2-------------1-------------2-----------
- + - +
x∈(∞;-2]∪(1;2]
3 votes
Thanks 2
Dимасuk
Может, в условии не сказано, где стоит корень, поэтому это решение правильное
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Verified answer
4-x²/x-1≥0 (2-x)(x+2)/x-1≥0 (x-2)(x+2)/x-1≤0---------------- -2-------------1-------------2-----------
- + - +
x∈(∞;-2]∪(1;2]