SEGUNDA TAREA 1ª5 T.MAT ALGEBRA

1.- ((3/5)/(16/9)(-2) + 12(-2) -36 = 2427/40
(27/80)(-2/1)+(-24)-36
(-54/80)+(-60)
(-54/80)+(-60/1)=-54+(-4800)/80=-4854/80=2427/40

((3/5)/(16/9)(2) + 12(2) -36 =-453/40
(27/80)(2/1)+(-24)-36=
(-54/80)+(-12)=
(-54/80)+(12/1)=54+(-960)/80=-906/80=-453/40

2.- 13(-3) - 35 +2/7 -15/8 = -4289/56
-39-35 + 2/7 -15/8 =
-74 +2/7 -15/8 =
2/7 -15/8 = 16 - 105/56= -89/56
-74/1 + -89/56= -4200+(-89)/56= -4289/56

13(3) - 35 +2/7 -15/8 =79/56
39 - 35 + 2/7 - 15/8
4+ 2/7 - 15/8
2/7 -15/8 = 16 - 105/56= -89/56
3/1 + -89/56= 168+(-89)/56= 79/56

3.- 21(-4) -16(-4)-18 +23 -65 +79 -45(-4) = 179
-84+64-18+23-65+79+180
-20-18+23-65+79+180
-38+23-65+79+180
-15-65+79+180
-80+79+180
-1+180
179

21(5) -16(5)-18 +23 -65 +79 -45(5) = -181
105-80-18+23-65+79-225
25-18+23-65+79-225
7+23-65+79-225
30-65+79-225
-35+79-225
44-225
-181

4.- ((9/8)(7/14)/(23/6))-6 +(1/5)-6 -19 = -11444/1280
(63/112)/(23/6)= (378/256)(6/1)=2268/256 + (1/5)(6/1)-19
2268/256 + 6/5= 11340+1536/1280= 12876/1280 - 19/1= 12876-24320/1280=-11444/1280

((9/8)(7/14)/(23/6))3 +(1/5)3 -19 = -17882/1280
(63/112)/(23/6)= (378/256)(3/1)=1134/256 + (1/5)(3/1)-19
1134/256 +3/5= 5670+768/1280=6438/1280 -19/1=6438-24320/120=-17882/1280

5.- (23/4)(65/6) + (2/3)5 -16/5)5 +22 =
1495/24 + (10/3 - 16/5)(5)+22
10/3 - 16/5=50-48/15=(2/15)(5/1)=10/15
1495/24 + 10/15=22425+240/15=22665/15
(22665/15)(5/1)= 113325/15 + 22/1= 113325 + 330/15= 113655/15

(23/4)(65/6) + (2/3)-7 -16/5)-7 +22 = -130773/15
1495/24 + (14/3 - 16/5)(-7)+22
14/3 - 16/5= 70-48/15=(22/15)(-7/1)=-154/15+22
1495+ -154/15= 22425+ (-3696)/15 = (18729/15)(-7/1)+22
(18729/15)(-7/1)= -131103/15 + 22/1= -131103+330/15= -130773/15

Primer Tarea 1ª5 Algebra T. Mat 21/08/2009

1.- R= -10080

2.-R= -1

3.- R=1872

4.-R= 135

5.-R= 0

6.- R= 7608/1485
(12/5)(6/3)= 72/15
(4/9)(8/11)= 32/99
72/15 + 32/99= 7128+480/1485= 7608/1485


7.- R= 32/3
14/3+15/2= 28+46/6= 73/6
73/6 - 6/4 = 292 - 36/24= 256/24= 128/12= 64/6 = 32/3

8.-R= -359/416
(12/5)(15/4)= 128/20
(13/7)(16/9)= 208/63
(128/20)/(208/63)= 11340/4160
(11340/4160)(-5/1)= -56700/4160
-56700/4160 + 1/2= -113400 + 4160/8320= -7180/8320= 3590/4160= -1795/2080= -359/416

9.-R= -13771/6622
(13/22)/(43/15)=195/946
195/946 - 16/7= 1365 - 15136/6622= -13771/6622

10.-R= -907/480(9/8)(8/6)=(72/48)/(25/4)=288/1200)(13/45)(45/2)=585/90288/1200 + 585/90 = 25925+702000/108000= 227925/108000227925/108000 - 16/4= 911700-1728000/432000= -816300/432000= -408150/216000=-204075/108000= -68025/36000= -22675/12000= -4535/2400= -907/480

11.- R=845879/12915
(33/17)(45/12)= 1485/204 + 3/5=7425+615/1025= 8040/1025 - 18/7= 56280-18450=
37830/7175 + 16/9= 340470+114800/64575= 455270/64575 - 25/5=
22761350-1614375/322875=21145975/322875=4229395/64575= 845879/12915

correccion de la tarea 1

1.- (2)5+3(-6)-(2)(4)5= -48
10-18-40
8-40=
-48

7.- ((49)/7)(-6)+2-3+4(5)(-2)= -83
7(-6)+2-3+20(-2)
-42-1-40=
-83

Tarea num 1

1.- (2)5+3(-6)-(2)(4)5= -12
10-18-40
28-40=
-12

2.-((15)/3)+2(18)-6-3-4= 28
15/3 + 36-6-3-4
5+36-6-3-4
41-6-3-4=
28

3.-(-2)(-4)(-5)(-3)(1)(7)= +840


4.-(2)(-5)(11)(-2)(8)(-5)= -8800


5.-2+3-5-6+7+18-39-65= -85


6.-(((5)(3))/3)+2-5(8)-4(-4)= -3
15/3-3(8)+16
5-27+16=
-3

7.- ((49)/7)(-6)+2-3+4(5)(-2)= -84
7(-6)+2-3+20(-2)
-42-1-40=
-84