matematikk.net

Regn ut UTEN lommeregner:

1) lg (10 * [symbol:rot] 10)

2) lg [sup]3[/sup] [symbol:rot] 100

3) lg 10[sup]-5[/sup]

4) lg 0,001

5) lg 9a

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Husk utregning =)

rosin wrote:Regn ut UTEN lommeregner:
1) lg (10 * [symbol:rot] 10)
2) lg [sup]3[/sup] [symbol:rot] 100
3) lg 10[sup]-5[/sup]
4) lg 0,001
5) lg 9a
Husk utregning =)

1)
lg10*10[sup]0.5[/sup] = lg(10) + lg(10)[sup]0.5[/sup] = 1 + 0.5lg(10) = 1 + 0.5 = 1.5 = 3/2



2)
lg(100[sup]1/3[/sup] = (1/3)*lg(100) = (1/3)*2 = 2/3 = 0.667


etc...etc...