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joylsbarbour
02.12.2019 •
Mathematics
Identify the standard form of a circle equation x^2+2x+y^2-2y=2
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Ответ:
The standard from of the expression is:![(x +1)^2 + (y-1)^2 = (2)^2](/tpl/images/0399/7782/aca6a.png)
Step-by-step explanation:
Here the given expression is :
Now, the standard form of a circle is given as :
Here, (h,k) = Coordinates of Center, r = Radius
Also, use the algebraic identity:
Now, converting the given expression in the standard form, we get:
Add 2 on both sides of the equation, we get:
So, here the standard from of the expression is:
Center coordinates here are (h,k) = ( -1 ,1) and Radius = 2 units
Ответ:
The answer is 4.
Step-by-step explanation:
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