If x2
– 5x + 8 is positive, then find range of x.
Answers
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0
Answer:
(2<x<3).
Step-by-step explanation:
ANSWER
f(x)=∣x
2
−5x+6∣, f
′
(x)=?
f(x)=∣(x−2)(x−3)∣
f(1)=∣1−5+6∣=2
So in (2,3) it is negative
⇒f(x)=(5x−x
2
+6) in (2,3)
f
′
(x)=5−2x for (2<x<3).
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