at least 1 root betw 0,-1
Consider an equation f'(x) ≡ ax2+bx+c = 0
If f(0) = f(-1)
what will be the value of the limits in which roots of f'(x) lie ?
Another question with this : limits of roots of f(x) = ?
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4 Answers
Lokesh Verma
·2009-10-29 05:57:26
f(0) = f(-1)
so by rolle's theorem,
f'(x) is zero between these two numbers...
If you attended the last class, then you will realize what I said (without stating the theorem whcih I will do later... or may be you studied this in school?) about crossing the river ?