Answer:
Step-by-step explanation:
According to Wikipedia In algebra, a quadratic equation is any equation that can be rearranged in standard form as where x represents an unknown, and a, b, and c represent known numbers, where a ≠ 0. If a = 0, then the equation is linear, not quadratic, as there is no term.
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:
The answer to the riddle is "nothing."
Nothing is greater than God.
Nothing is more evil than the Devil.
The poor have nothing.
The rich need nothing.
And if you eat nothing, you'll die.
Step-by-step explanation:
The answer is D Hope this Helps
Answer:
3x^3
Step-by-step explanation:
57/19=3
x^5 - x^2 = x^3
