Matematické Fórum

stuart clark

If $f(x)= ax^2 + bx + c$ and $\mid f(x)\leq 1\forall x\leq 1$

Then prove that $\mid a \mid + \mid b \mid + \mid c \mid \leq 17$

i have edit it

Marian · 18. 12. 2011 12:26 — Editoval Marian (18. 12. 2011 13:10)

I can't understand the condition $\mid f(x)\mid\le 1$ for every $x\le 1$ where $f(x)$ means $ax^2+bx+c$ . It is impossible to fulfil this condition for any function $f(x)=ax^2+bx+c$ , $a\neq 0$ .

Please, correct the conditions.

Matematické Fórum

#1 01. 12. 2011 19:01 — Editoval stuart clark (18. 12. 2011 13:38)

equation with modulus

#2 18. 12. 2011 12:26 — Editoval Marian (18. 12. 2011 13:10)

Re: equation with modulus

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