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la cuevadel empollón
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2

2 puntos
Dado a≠0a \neq 0, se tiene el siguiente sistema de ecuaciones lineales:{x+ay=1,x+ay+z=a,(a−2)x+ay+(a−1)z=a+2.\begin{cases}x + ay = 1, \\ x + ay + z = a, \\ (a - 2)x + ay + (a - 1)z = a + 2.\end{cases}
a
Encuentra un valor de aa para el que el sistema dado tiene más de una solución.1 pt
b
Encuentra todas las soluciones del sistema para el valor de aa del apartado anterior.1 pt

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Áreas limitadas por la curva N(0,1)N(0, 1) desde −∞-\infty hasta zz
Curva normal con el área sombreada desde menos infinito hasta z.
0,000,010,02
0,00,50000,50400,5080
0,10,53980,54380,5478
0,20,57930,58320,5871
0,30,61790,62170,6255
0,40,65540,65910,6628
0,50,69150,69500,6985
0,60,72570,72910,7324
0,70,75800,76110,7642
0,80,78810,79100,7939
0,90,81590,81860,8212
1,00,84130,84380,8461
1,10,86430,86650,8686
1,20,88490,88690,8888
1,30,90320,90490,9066
1,40,91920,92070,9222
1,50,93320,93450,9357
1,60,94520,94630,9474
1,70,95540,95640,9573
1,80,96410,96490,9656
1,90,97130,97190,9726
2,00,97720,97780,9783
2,10,98210,98260,9830
2,20,98610,98640,9868
2,30,98930,98960,9898
2,40,99180,99200,9922
2,50,99380,99400,9941
2,60,99530,99550,9956
2,70,99650,99660,9967
2,80,99740,99750,9976
2,90,99810,99820,9982
3,00,99870,99870,9987
3,10,99900,99910,9991
3,20,99930,99930,9994
3,30,99950,99950,9995
3,40,99970,99970,9997
3,50,99980,99980,9998
3,60,99980,99980,9999
3,70,99990,99990,9999
3,80,99990,99990,9999
3,91,00001,00001,0000
0,030,040,05
0,00,51200,51600,5199
0,10,55170,55570,5596
0,20,59100,59480,5987
0,30,62930,63310,6368
0,40,66640,67000,6736
0,50,70190,70540,7088
0,60,73570,73890,7422
0,70,76730,77040,7734
0,80,79670,79950,8023
0,90,82380,82640,8289
1,00,84850,85080,8531
1,10,87080,87290,8749
1,20,89070,89250,8944
1,30,90820,90990,9115
1,40,92360,92510,9265
1,50,93700,93820,9394
1,60,94840,94950,9505
1,70,95820,95910,9599
1,80,96640,96710,9678
1,90,97320,97380,9744
2,00,97880,97930,9798
2,10,98340,98380,9842
2,20,98710,98750,9878
2,30,99010,99040,9906
2,40,99250,99270,9929
2,50,99430,99450,9946
2,60,99570,99590,9960
2,70,99680,99690,9970
2,80,99770,99770,9978
2,90,99830,99840,9984
3,00,99880,99880,9989
3,10,99910,99920,9992
3,20,99940,99940,9994
3,30,99960,99960,9996
3,40,99970,99970,9997
3,50,99980,99980,9998
3,60,99990,99990,9999
3,70,99990,99990,9999
3,80,99990,99990,9999
3,91,00001,00001,0000
0,060,070,08
0,00,52390,52790,5319
0,10,56360,56750,5714
0,20,60260,60640,6103
0,30,64060,64430,6480
0,40,67720,68080,6844
0,50,71230,71570,7190
0,60,74540,74860,7517
0,70,77640,77940,7823
0,80,80510,80780,8106
0,90,83150,83400,8365
1,00,85540,85770,8599
1,10,87700,87900,8810
1,20,89620,89800,8997
1,30,91310,91470,9162
1,40,92790,92920,9306
1,50,94060,94180,9429
1,60,95150,95250,9535
1,70,96080,96160,9625
1,80,96860,96930,9699
1,90,97500,97560,9761
2,00,98030,98080,9812
2,10,98460,98500,9854
2,20,98810,98840,9887
2,30,99090,99110,9913
2,40,99310,99320,9934
2,50,99480,99490,9951
2,60,99610,99620,9963
2,70,99710,99720,9973
2,80,99790,99790,9980
2,90,99850,99850,9986
3,00,99890,99890,9990
3,10,99920,99920,9993
3,20,99940,99950,9995
3,30,99960,99960,9996
3,40,99970,99970,9997
3,50,99980,99980,9998
3,60,99990,99990,9999
3,70,99990,99990,9999
3,80,99990,99990,9999
3,91,00001,00001,0000
0,09
0,00,5359
0,10,5753
0,20,6141
0,30,6517
0,40,6879
0,50,7224
0,60,7549
0,70,7852
0,80,8133
0,90,8389
1,00,8621
1,10,8830
1,20,9015
1,30,9177
1,40,9319
1,50,9441
1,60,9545
1,70,9633
1,80,9706
1,90,9767
2,00,9817
2,10,9857
2,20,9890
2,30,9916
2,40,9936
2,50,9952
2,60,9964
2,70,9974
2,80,9981
2,90,9986
3,00,9990
3,10,9993
3,20,9995
3,30,9997
3,40,9998
3,50,9998
3,60,9999
3,70,9999
3,80,9999
3,91,0000