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3.2

2,5 puntos
Bloque con optatividad 1

Resuelve sólo uno de los siguientes ejercicios:

Considera los planos π1≡2x−y−z=7\pi_1\equiv 2x-y-z=7, π2≡x−2y+z=3\pi_2\equiv x-2y+z=3 y el punto P(1,1,0)P(1, 1, 0).
a
Determina la ecuación de la recta que pasa por el punto PP y es paralela a ambos planos.1,25 pts
b
Halla la ecuación del plano que pasa por el punto PP y es perpendicular a π1\pi_1 y a π2\pi_2..1,25 pts

Formulario

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FUNCIÓN DE DISTRIBUCIÓN NORMAL N(0,1)\mathrm{N}(0,1)
Distribución normal N(0,1) Área P(Z ≤ z) bajo la curva normal desde menos infinito hasta z. N(0,1) P(Z ≤ z) −∞ 0 z +∞
zz0,000,01
0,00,50000,5040
0,10,53980,5438
0,20,57930,5832
0,30,61790,6217
0,40,65540,6591
0,50,69150,6950
0,60,72570,7291
0,70,75800,7611
0,80,78810,7910
0,90,81590,8186
1,00,84130,8438
1,10,86430,8665
1,20,88490,8869
1,30,90320,9049
1,40,91920,9207
1,50,93320,9345
1,60,94520,9463
1,70,95540,9564
1,80,96410,9649
1,90,97130,9719
2,00,97720,9778
2,10,98210,9826
2,20,98610,9864
2,30,98930,9896
2,40,99180,9920
2,50,99380,9940
2,60,99530,9955
2,70,996530,99664
2,80,997440,99752
2,90,998130,99819
3,00,998650,99869
3,10,999030,99906
3,20,999310,99934
3,30,999520,99953
3,40,999660,99968
3,50,999770,99978
3,60,999840,99985
3,70,999890,99990
3,80,999930,99993
3,90,999950,99995
4,00,999970,99997
zz0,020,03
0,00,50800,5120
0,10,54780,5517
0,20,58710,5910
0,30,62550,6293
0,40,66280,6664
0,50,69850,7019
0,60,73240,7357
0,70,76420,7673
0,80,79390,7967
0,90,82120,8238
1,00,84610,8485
1,10,86860,8708
1,20,88880,8907
1,30,90660,9082
1,40,92220,9236
1,50,93570,9370
1,60,94740,9484
1,70,95730,9582
1,80,96560,9664
1,90,97260,9732
2,00,97830,9788
2,10,98300,9834
2,20,98680,9871
2,30,98980,9901
2,40,99220,9925
2,50,99410,9943
2,60,99560,9957
2,70,996740,99683
2,80,997600,99767
2,90,998250,99831
3,00,998740,99878
3,10,999100,99913
3,20,999360,99938
3,30,999550,99957
3,40,999690,99970
3,50,999780,99979
3,60,999850,99986
3,70,999900,99990
3,80,999930,99994
3,90,999960,99996
4,00,999970,99997
zz0,040,05
0,00,51600,5199
0,10,55570,5596
0,20,59480,5987
0,30,63310,6368
0,40,67000,6736
0,50,70540,7088
0,60,73890,7422
0,70,77040,7734
0,80,79950,8023
0,90,82640,8289
1,00,85080,8531
1,10,87290,8749
1,20,89250,8944
1,30,90990,9115
1,40,92510,9265
1,50,93820,9394
1,60,94950,9505
1,70,95910,9599
1,80,96710,9678
1,90,97380,9744
2,00,97930,9798
2,10,98380,9842
2,20,98750,9878
2,30,99040,9906
2,40,99270,9929
2,50,99450,9946
2,60,99590,9960
2,70,996930,99702
2,80,997740,99781
2,90,998360,99841
3,00,998820,99886
3,10,999160,99918
3,20,999400,99942
3,30,999580,99960
3,40,999710,99972
3,50,999800,99981
3,60,999860,99987
3,70,999910,99991
3,80,999940,99994
3,90,999960,99996
4,00,999970,99997
zz0,060,07
0,00,52390,5279
0,10,56360,5675
0,20,60260,6064
0,30,64060,6443
0,40,67720,6808
0,50,71230,7157
0,60,74540,7486
0,70,77640,7794
0,80,80510,8078
0,90,83150,8340
1,00,85540,8577
1,10,87700,8790
1,20,89620,8980
1,30,91310,9147
1,40,92790,9292
1,50,94060,9418
1,60,95150,9525
1,70,96080,9616
1,80,96860,9693
1,90,97500,9756
2,00,98030,9808
2,10,98460,9850
2,20,98810,9884
2,30,99090,9911
2,40,99310,9932
2,50,99480,9949
2,60,99610,9962
2,70,997110,99720
2,80,997880,99795
2,90,998460,99851
3,00,998890,99893
3,10,999210,99924
3,20,999440,99946
3,30,999610,99962
3,40,999730,99974
3,50,999810,99982
3,60,999870,99988
3,70,999920,99992
3,80,999940,99995
3,90,999960,99996
4,00,999980,99998
zz0,080,09
0,00,53190,5359
0,10,57140,5753
0,20,61030,6141
0,30,64800,6517
0,40,68440,6879
0,50,71900,7224
0,60,75170,7549
0,70,78230,7852
0,80,81060,8133
0,90,83650,8389
1,00,85990,8621
1,10,88100,8830
1,20,89970,9015
1,30,91620,9177
1,40,93060,9319
1,50,94290,9441
1,60,95350,9545
1,70,96250,9633
1,80,96990,9706
1,90,97610,9767
2,00,98120,9817
2,10,98540,9857
2,20,98870,9890
2,30,99130,9916
2,40,99340,9936
2,50,99510,9952
2,60,99630,9964
2,70,997280,99736
2,80,998010,99807
2,90,998560,99861
3,00,998960,99900
3,10,999260,99929
3,20,999480,99950
3,30,999640,99965
3,40,999750,99976
3,50,999830,99983
3,60,999880,99989
3,70,999920,99992
3,80,999950,99995
3,90,999970,99997
4,00,999980,99998
Nota: En el interior de la tabla se da la probabilidad de que la variable aleatoria ZZ, con distribución N(0,1)\mathrm{N}(0,1), esté por debajo del valor zz.