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2438a<br />
2438b<br />
2<br />
3<br />
3 2<br />
3<br />
( 2a ) = 2 ⋅ ( a ) =<br />
3 2<br />
3<br />
( 2x ⋅ 3y<br />
) =<br />
6<br />
8a<br />
3<br />
2<br />
3 ( x ) 3<br />
3<br />
2 ( y )<br />
2439a<br />
( )<br />
2 2 2<br />
ab = a ⋅ b =<br />
−3<br />
5 ( x ) ( y )<br />
2 2<br />
⋅ =<br />
x ⋅ y = x y<br />
−6 10 −6<br />
10<br />
2441a−b−c−d<br />
12<br />
4 = 4 = 2<br />
4^1⎦2 alt 4^(1/2)<br />
2444a<br />
32 22+ 12<br />
4 = 4 =<br />
22 12 1<br />
4 ⋅ 4 = 4 ⋅ 4 =<br />
42 ⋅ = 8<br />
4^3⎦2 2445a<br />
5 = 5<br />
2446a<br />
12<br />
( ) 14<br />
8 2 2<br />
14 3 314 ⋅<br />
2<br />
34<br />
LÖSNINGAR DEL B<br />
3 3<br />
⋅ ⋅ ⋅ =<br />
8⋅x⋅27⋅ y = 216x<br />
y<br />
2439b<br />
( )<br />
9 6 9 6<br />
−4 −4 −4<br />
5a = 5 ⋅ a =<br />
1<br />
⋅ =<br />
1<br />
⋅ =<br />
− ( )<br />
4<br />
5<br />
12<br />
x<br />
3<br />
−4<br />
625<br />
12<br />
x<br />
x<br />
625<br />
2442a−b−c−d<br />
13 3<br />
4 = 8 = 2<br />
4^1⎦3 alt 4^(1/3)<br />
2444b<br />
8<br />
1<br />
8<br />
1<br />
8<br />
− 23<br />
= = =<br />
23<br />
2<br />
1 1<br />
= = 14<br />
2<br />
2 4<br />
8^-2⎦3<br />
2445b<br />
5 5 = 5⋅ 5 =<br />
1 1 2<br />
5 ⋅ 5 =<br />
112 + 32<br />
5 = 5<br />
2446b<br />
3<br />
= = = 32 ( 32)<br />
( )<br />
13<br />
= =<br />
13 ( )<br />
5<br />
13<br />
51 ⋅ 3 5 3<br />
2 = 2 = 2<br />
2438c<br />
( ) ( )<br />
3<br />
4<br />
3<br />
4<br />
4<br />
x ⋅ y = x ⋅ y =<br />
x ⋅ y = x y<br />
12 4 12 4<br />
2439c<br />
2 ( 3b ) 3<br />
3<br />
2 ( b )<br />
27 (<br />
6<br />
) 27<br />
27y<br />
3 3<br />
5 30<br />
⋅ = ⋅ =<br />
30<br />
= ⋅ =<br />
y y<br />
2443a−b−c−d<br />
1 1 1<br />
9<br />
9^-1⎦2 9 3<br />
2438d<br />
−2<br />
−3<br />
( 0,1x<br />
)<br />
−3 −2<br />
0,1 ( x )<br />
=<br />
−3<br />
⋅ =<br />
1000⋅ x = 1000x<br />
2439d<br />
6 6<br />
3 2<br />
5<br />
( 2ab<br />
) =<br />
5<br />
2<br />
3 ( a ) 2 ( b )<br />
32<br />
−12<br />
9 = = = = 1 3<br />
12<br />
2444c<br />
32 22+ 12<br />
9 = 9 =<br />
22 12 1<br />
9 9 9 9<br />
⋅ = ⋅ =<br />
93 ⋅ = 27<br />
9^3⎦2 2445c<br />
1 1<br />
= = 5 12<br />
5 5<br />
2446c<br />
−12<br />
12<br />
( 2) ( 2 )<br />
2 = 2<br />
10 10<br />
1210 ⋅ 5<br />
= =<br />
5 5<br />
⋅ ⋅ =<br />
15 10<br />
⋅a ⋅ b =<br />
15 10<br />
−3<br />
5 ( x ) ( y )<br />
32⋅<br />
⋅ =<br />
32x<br />
y<br />
−45<br />
50<br />
2444d<br />
− 43 1<br />
27 = = 43<br />
27<br />
1 1 1<br />
= =<br />
4 4<br />
3 81<br />
13 ( 27 )<br />
= 181<br />
8^-4⎦3<br />
2445d<br />
12 ( 5) ( 5 )<br />
5 = 5<br />
3 3<br />
123 ⋅ 32<br />
4 ( 2 )<br />
43<br />
= =<br />
2446d<br />
1 1<br />
=<br />
3<br />
13<br />
16 ( 16)<br />
=<br />
1<br />
13<br />
1<br />
= = 41 ⋅ 3<br />
2<br />
1<br />
2<br />
=<br />
2<br />
−43<br />
39