(x^2+xy-3y^2) - (4x^2-xy+y^2)
1 answer:
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Step-by-step explanation:
Hi, Hope this will help:)
By definition, the circumference of a circle is:
The area of a circle is:
Where,
r: radius of the circle.
When the radius is double, then the new area is:
Rewriting we have:
In terms of a we have:
Answer:
The new area of the circle in terms of a is:
The area of a circle is:
Where,
r: radius of the circle.
When the radius is double, then the new area is:
Rewriting we have:
In terms of a we have:
Answer:
The new area of the circle in terms of a is: