11.07.2015 Views

RIJEÅ ENI ZADACI IZ MATEMATIKE

RIJEÅ ENI ZADACI IZ MATEMATIKE

RIJEÅ ENI ZADACI IZ MATEMATIKE

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56. Zadana je matrica tehničkih koeficijenata⎡⎤0.1 0.3 0.2A = ⎣0.3 0.2 0.1⎦0.2 0.1 0.3Za koliko se treba promijeniti vektor ⎡ ⎤ finalne potražnje ako se planira povećanje30proizvodnje za vektor ∆Q = ⎣10⎦ i tehnološki uvjeti se ne mijenjaju da bi20promatrana trosektorska ekonomija ostala u ravnoteži?Rješenje:T · ∆Q = ∆q⎡⎤0.9 −0.3 −0.2T = I − A = ⎣−0.3 0.8 −0.1⎦−0.2 −0.1 0.7⎡⎤ ⎡ ⎤ ⎡ ⎤0.9 −0.3 −0.2 30 20∆q = ⎣−0.3 0.8 −0.1⎦ · ⎣10⎦ = ⎣−3⎦−0.2 −0.1 0.7 20 764

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