How-do-you-all-to-prove-is-true-or-false-Prove-the-1-1-p-p-2-p-3-1-1-q-q-2-q-3-1-1-r-r-2-r-3-1-1-s-s-2-s-3-1-

Question Number 164451 by Zaynal last updated on 17/Jan/22

How do you all to prove is true or false ? ?;

P r o v e t h e :

\frac{1}{1 + p + p^{2} + p^{3}} + \frac{1}{1 + q + q^{2} + q^{3}} + \frac{1}{1 + r + r^{2} + r^{3}} + \frac{1}{1 + s + s^{2} + s^{3}} ⩾ 1

Commented by mr W last updated on 17/Jan/22

f a l s e!

f (x) = \frac{1}{1 + x + x^{2} + x^{3}} c a n g e t a n y v a l u e s

f r o m - \infty t o + \infty e x c e p t 0 . t h e r e f o r e

\frac{1}{1 + p + p^{2} + p^{3}} + \frac{1}{1 + q + q^{2} + q^{3}} + \frac{1}{1 + r + r^{2} + r^{3}} + \frac{1}{1 + s + s^{2} + s^{3}}

c a n g e t a n y v a l u e s f r o m - \infty t o + \infty .

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