if-a-b-c-gt-0-Prove-that-a-1-a-b-1-b-gt-c-1-c-I-need-your-help-please-

Question Number 126538 by Ndala last updated on 21/Dec/20

i f a + b ⩾ c > 0

P r o v e t h a t \frac{a}{1 + a} + \frac{b}{1 + b} > \frac{c}{1 + c}

.

I need your help, please!

Commented by MJS_new last updated on 21/Dec/20

a + b ⩾ c > 0 means a xor b could be < 0 i . e .

a = 5, b = - 3, c = 1

or a > 0 \land b > 0 ?

Commented by Ndala last updated on 21/Dec/20

a, b \in R

Can you help me ?

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