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1. Tal og Bogstavregning: - Horsens HF og VUC

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J.J. Holmen: FACITLISTE TIL ØVELSER I MAT C-BOGEN Side 2 af 32<br />

10) 8 35 1 5 10 21 4 1 12 1<br />

; 11) ; 12) ; 13) ; 14) ; 15) ; 16) ; 17) ; 18) ; 19)<br />

15 4 21 3 3 10 3 5 5 36 .<br />

Øvelse <strong>1.</strong>11: 1) 5 19<br />

; 2)<br />

24 24<br />

Øvelse <strong>1.</strong>12: *<br />

Øvelse <strong>1.</strong>13: 1)<br />

10) 10<br />

a .<br />

2<br />

a − ; 2)<br />

1<br />

; 3) ; 4) 5,19,4.<br />

6<br />

5<br />

a − ; 3)<br />

7<br />

a ; 4) 3<br />

a ; 5)<br />

3<br />

a − ; 6) 10 n ; 7) 2 5 n<br />

, ; 8) 0 4 n<br />

, ; 9) 10<br />

a ;<br />

Øvelse <strong>1.</strong>14: 1) 10; 2) 100000; 3) 10000; 4) 1000; 5) 1000000.<br />

Øvelse <strong>1.</strong>15: 1) 0,0442; 2) 0,0442; 3) 22,6274; 4) 22,6274; 5) 0,0019;<br />

6) 0,0019; 7) 0,0036; 8) 0,0036; 9) 0,0005; 10) 0,0005; 11) 0,0002;<br />

12) 0,0002; 13) 0,2857; 14) 0,2857; 15) 1,3010; 16) 1,3010; 17) 0,6990;<br />

18) 0,6990; 19) 3,0103; 20) 3,0103.<br />

Øvelse <strong>1.</strong>16: *<br />

Øvelse <strong>1.</strong>17: 1) 121; 2) 343; 3) 6 250 000; 4)<br />

6)<br />

11<br />

2.6027 10 −<br />

⋅ ; 7)<br />

-2,6194; 11) 1,9826; 12)<br />

Øvelse <strong>1.</strong>18: *<br />

9<br />

5.1441⋅ 10 ; 5) 1,6243;<br />

67<br />

9.0949⋅ 10 ; 8) 3,3166 eller -3,3166; 9) 1,9129; 10) 2,6591 eller<br />

Øvelse <strong>1.</strong>19: 1) *; 2) 19,42; 3) 7,42; 3) *; 4) *.<br />

Øvelse <strong>1.</strong>20: *<br />

Øvelse <strong>1.</strong>21: *<br />

Øvelse <strong>1.</strong>22: *<br />

Øvelse <strong>1.</strong>23: *<br />

2. Ligninger <strong>og</strong> formler:<br />

Øvelse 2.1: 1) 2; 2) 3; 3) 8; 4) 5; 5) 5; 6) 9<br />

4 .<br />

Øvelse 2.2: 1) x = 1;<br />

2) x = 6 ; 3) x = 8 .<br />

Øvelse 2.3: 1) x = 3;<br />

2) x = 1;<br />

3) x = − 3;<br />

4)<br />

8)<br />

8<br />

x = ; 9) x = − 5;<br />

10)<br />

3<br />

13<br />

5.0277 ⋅ 10 ; 13) 0,5337; 14) 1,1027 eller -1,1027.<br />

1<br />

x = ; 11)<br />

3<br />

7<br />

x = − ; 5)<br />

3<br />

27<br />

x = ; 12) x = − 1;<br />

13) x = 3.<br />

10<br />

3<br />

x = 6) x = 0 ; 7) x = − 3;<br />

2

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