So the radius is from (-2, -3) to (-2, 0) which is a distance of 3The general form for the equation of a circle is:
, where the center is (h, k)Plug into the general equation
(a+b)(a-b)=? Đây là hằng đẳng thức nào?
2 answers:
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Answer:
sign(f(3)) ≠ sign(f(4))
Step-by-step explanation:
The intermediate value theorem tells you that a sign change between f(a) and f(b) means there is a root in the interval [a, b].
Here, we have f(3) ≈ +2.9 and f(4) ≈ -17.6, so there is a root in [3, 4].
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The root is approximately 3.27560108885.
