Question
Find the x -coordinates of all relative maxima of f(x) i f(x)=-(3)/(4)x^4-3x^3+81x^2-37 Answer Attemptiout of 4 (4) Additional Solution No Solution z=
Solution
4.4
(238 Votos)
Pedro
Profissional · Tutor por 6 anos
Resposta
To find the x-coordinates of all relative maxima of the function
, we need to find the critical points of the function and then determine which of these points correspond to relative maxima.Step 1: Find the derivative of the function
.
Step 2: Set the derivative equal to zero and solve for
to find the critical points.
The critical points are
,
, and
.Step 3: Use to determine the nature of each critical point.Find the second derivative of
.
Evaluate the second derivative at each critical point:
, so
is a relative minimum.
, so
is an inflection point.
, so
is a relative minimum.Therefore, the x-coordinate of the relative maximum of the function
is
.