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Mathematics
Ali
19 June, 05:47
Solve for y:
Y^2-2xy=1
+3
Answers (
1
)
Lucille Eaton
19 June, 09:07
0
y = x ±√ (x²+1)
Step-by-step explanation:
Rewrite to standard quadratic form, then use the quadratic formula.
... y² - 2xy - 1 = 0
... a=1, b=-2x, c=-1, so the quadratic formula
... y = (-b ±√ (b²-4ac)) / (2a)
can be filled in as ...
... y = - (-2x) ±√ ((-2x) ² - 4 (1) (-1))) / 2 (1))
... y = x ±√ (x² + 1)
For any given value of x, there are two possible values of y. This is not a function.
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