c0017p1_0_x
DESCRIPTION
Ejercicio 0 de cálculoTRANSCRIPT
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a < b a + c < b + c
a <
Lista P1 Ejercicio 0-x.Sean a, b, c . Demuestre que: Se tiene que: b - a > 0
(b - a) + 0 > 0 (b - a) + (c - c)
b
> 0
⇒∈
⇒⇒⇒
( (b - a) + c) - c > 0(b +(- a + c) ) - c > 0(b +( c - a ) ) - c > 0( (b + c ) - a ) - c > 0(b + c ) + (- a - c ) > 0(b + c ) + (- (
⇒⇒⇒⇒⇒⇒ 1a) - (1c ) ) > 0
(b + c ) + ( (-1)a +(- 1) c ) > 0(b + c ) + (-1)( a + c ) > 0(b + c ) ( 1 ( a + c ) ) > 0(b + c ) ( a + c ) > 0(b + c )
−−−
⇒⇒⇒⇒⇒
a + c b + c
( a + c ) > 0
a < b a + c < b + c
<
∴⇒
⇒