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Hvor mange gjeldende siffer har følgende tall

", "advice": "

Når vi skal regne gjeldende siffer så teller vi alltid fra og med det førstetallet som ikke er null, og til og med den siste nullen etter komma. Dette er fordi det er stor forskjell på $120,0$ og $120,000\\ 000$ i siste tilfellet har vi gjort langt, langt mer nøyaktige målinger og har en mye lavere usikkerhet.

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a)Her har vi to siffer før komma, og fire etter, altså 6 siffertotalt.

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b)Her har vi null siffer før komma, og to etter, altså 2 siffertotalt.

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c)Her har vi null siffer før komma, og ett etter, altså 1 siffertotalt

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a) $-14.5400$ [[0]]

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b) $-0.14\\cdot10^3$ [[1]]

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c) $0.004$ [[2]]

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