SEGUNDA TAREA 1.5 T. MAT. ALGEBRA 28/08/09

1. ((3/5)/(16/9)x+12x-36= -906/80

(3/50)/(16/9)=(27/80)(-2/1)=-54/80+24/1= -54+1920/80=1974/80-36/1=1974-2880/80= -906/80

2; 13X-35+2/7-15/8= -4233/6

(13)(-3)=-39-35= -74/1+2/7= -518+2/7= -516/7-15/8= -4128-105/56=-429-33/56

3; 21x-16x-18+23-65+79-45x=-307

-84-80= -164+23= -141-65= -206+79= -127-180= -307

4; ((9/8)(7/14)/(23/6))x+(1/5)x-19= -271012/12880

(9/8)(7/14)= 63/112/(23/60=378/2576(-6/1)= -2268/2576+(1/50)= -11390+2576/12880= -8764/12880(3/1)= -26292/12880-19/1= -26292-244720/12880= -271012/12880

5;(23/4)(65/6)+(2/3)x-16/5)x+22=23481/360

1495/24+-286/15=22425+-6864/360=15561/360+22/1=15561+7920/360=23481/360

Primer Tarea 1.5 Algebra T. Mat. 21/08/09

1. (2)(3)(-5)(-2)(3)(-7)(8)=10080=5040=2520=1260=630=315

6(-5)=-30(-2)=-60(3)=-180(-7)=1260(8)=10080

2. (5)(-5)(3)+2+4-7-12+45-33+75=1

-25(3)=-75+2=-72+4=-69-7=76-12=88+45=43-33=-76+75=1

3.-134-12+13+54-65+67(2)(3)(4)=231

-146+13=-133+54=-79-65=-144+67=77(2)=154(3)=-462(4)=1848=924=462=231

4. 12-44+36-76+89-55+243-74=131

-32+30=4-76=-72+89=17-55=-38+243=205-74=131

5. (2)(3)(-4)(5)(-6)(7)(-8)(9)(0)=2835

6(-4)=-24(5)=-120(-6)=720(7)=5040(-8)=-40320(9)=-362880=181440=90720=45360=22680=11340=5670=2835

6. (12/5)(6/3)+(4/9)(8/11)=7608/1485

72/15+32/99=7128+480/1485=7608/1485

7. 14/3+15/2-6/4=41/3

45+28/6=73/6-6/4=292+36/24=328/24=164/12=82/6=41/3

8. ((12/5)(15/4)/(13/7)(16/9))(-5)+1/25=19845/3250

180/20\208/28=5040/4160 (-5)+1/25=125+1/25=126/25

(5040/4160)(126/25)=635040/104000=317520/52000=158760/26000=79380/13000=39690/6500=19845/3250

9. (13/22)\(43/15)-16/7=-14571/6972

195/946-16/7=1365-15936/6972=-14571/6972

10. ((9/8)(8/6)\(25/4))+((13/45)(45/2))-16/4=1560125/405000

54/64\25/4=216/1600 26/2025

216/1600+26/2025=437400+41600/ 3240000=479000/3240000-16/4=1916000-51840000/12960000=49924000/29000=24962000/6480000=12481000/324000=6240500/162000=3120250/81000=1560125/40500

11. (33/17)(45/12)+3/5-18/7+16/9-25/5=401625/80325

(33/17)(45/12)=1485/204+3/5=7425+612/1020=8097/1020-18/7=56679-18360/7140=38319/7140+16/9=344871+114240/64260=459111/64260-25/5=2295555-1606500/321300=689055/321300=803250/160650=401625/80325

ejercicio grupo 1.5

1. (2)5+3(-6)-(2)(4)5=48

2. ((15)/3)+2(18)-6-3-4=31

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)=-48

7. ((49)/7)(-6)+2-3+4(5)(-2)=-41