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MATEMATIKA 1 Senka Banic PREDAVANJA (grupa G1): utorak i ...

MATEMATIKA 1 Senka Banic PREDAVANJA (grupa G1): utorak i ...

MATEMATIKA 1 Senka Banic PREDAVANJA (grupa G1): utorak i ...

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Geometrijski, jxj predstavlja udaljenost tocke T (x)na brojevnom pravcu od ishodišta O (0) :Uocimo da je:jxj 0;jxj = 0 () x = 0;x jxj i x jxj ;jxj = p x 2Teorem 4.3. Za svaki x; y 2 R i za svaki r 2 R +vrijede sljedeća svojstva apsolutne vrijednosti:1. jxj < r () r < x < r () x 2 h r; ri ;2. jx + yj jxj + jyj (nejednakost trokuta) ;3. jx yj jxj jyj ;4. jx yj = jxj jyj ;5.xy = jxj za y 6= 0 :jyj

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