First part
Thus the first part's blank should be filled in with 4x
Second part
Thus the second part's blank should be filled in with 2x + 10
Hope that helps!
I don't think that this is possible. The closest pair, -5 and 9, equal 4.
Answer:
You know that if f(x) = 1/(x²+1) then F(x)=arctan(x).
What is arctan(x) function? It is inverse function of tan(x) in tge range (-π/2, π/2).
So if tan(x) = y then x = arctan(y)
therefore arctan(-1) = -π/4 because tan(-π/4)=-1 and arctan(1)=π/4 because tan(π/4) = 1.
In conclusion:
integral (dx/(x²+1)) from -1 to 1 =
= F(1) - F(-1) = arctan(1) - arctan(-1) =
=π/4-(-π/4)=π/4+π/4 = π/2.
answer B is correct
Answer: f(n) + g(n) = -2n^3 + 3n^2 - 2n - 4
Explanation:
f(n) + g(n) = (-2n^3 + 3n^2) + (-2n - 4)
f(n) + g(n) = -2n^3 + 3n^2 - 2n - 4
40.00- 28.8% = 28 so it is 28.8% !!!!