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Problem
Problem
Find all the values of
a
a
a
for which the function
f
(
x
)
=
(
a
2
−
3
a
+
2
)
cos
(
x
2
)
+
(
a
−
1
)
x
possess critical points.
f(x) = (a^2 - 3a + 2)\cos\left(\frac{x}{2}\right) + (a-1)x \text{ possess critical points.}
f
(
x
)
=
(
a
2
−
3
a
+
2
)
cos
(
2
x
)
+
(
a
−
1
)
x
possess critical points.
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