Asked by Collins
Let f(x) be a decreasing the function defined for x>or=0 and f(2a^2+a+1)<or= f(3a^2-4a+1)
then find the minimum and maximum value of a
plz help help help!!!show ur work
Answers
Answered by
Steve
since f is decreasing,
2a^2+a+1 >= 3a^2-4a+1
a^2-5a <= 0
a(a-5) <= 0
0 <= a <= 5
2a^2+a+1 >= 3a^2-4a+1
a^2-5a <= 0
a(a-5) <= 0
0 <= a <= 5
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