Kaj je navzkrižni produkt [3, 0, 5] in [1,2,1]?

Odgovor:

# ((3), (0), (5)) xx ((1), (2), (1)) = ((-10), (2), (6)) #, ali #-10,2,6#

Pojasnilo:

Uporabimo lahko zapis:

((3), (0), (5)) xx ((1), (2), (1)) = | (ul (hat (i)), ul (hat (j)), ul (hat (k))), (3,0,5), (1,2,1) | #

#:. ((3), (0), (5)) xx ((1), (2), (1)) = | (0,5), (2,1) | ul (hat (i)) - | (3,5), (1,1) | ul (klobuk (j)) + | (3,0), (1,2) | ul (klobuk (k)) #

#:. ((3), (0), (5)) xx ((1), (2), (1)) = (0-10) ul (klobuk (i)) - (3-5) ul (klobuk (j)) + (6-0) ul (klobuk (k)) #

#:. ((3), (0), (5)) xx ((1), (2), (1)) = -10 ul (hat (i)) +2 ul (kap (j)) +6 ul (klobuk (k)) #

#:. ((3), (0), (5)) xx ((1), (2), (1)) = ((-10), (2), (6)) #

Kaj je navzkrižni produkt <0,8,5> in <-1, -1,2>?

<21,-5,8> We know that vecA xx vecB = ||vecA|| * ||vecB|| * sin(theta) hatn, where hatn is a unit vector given by the right hand rule. So for of the unit vectors hati, hatj and hatk in the direction of x, y and z respectively, we can arrive at the following results. color(white)( (color(black){hati xx hati = vec0}, color(black){qquad hati xx hatj = hatk}, color(black){qquad hati xx hatk = -hatj}), (color(black){hatj xx hati = -hatk}, color(black){qquad hatj xx hatj = vec0}, color(black){qquad hatj xx hatk = hati}), (color(black){hatk xx hati = hatj}, color(black){qquad hatk xx hatj = -hati}, color(black){qquad hatk xx hatk

Kaj je navzkrižni produkt [0,8,5] in [1,2, -4]?

[0,8,5] xx [1,2, -4] = [-42,5, -8] Rezultat izdelka vecA in vecB je vecA xx vecB = || vecA || * || vecB || * sin (theta) hatn, kjer je theta pozitiven kot med vecA in vecB, in hatn je enota vektor s smerjo, podano z desnim pravilom. Za enote vektorje hati, hatj in hatk v smereh x, y in z, barva (bela) ((barva (črna) {hati xx hati = vec0}, barva (črna) {qquad hati xx hatj = hatk} , barva (črna) {qquad hati xx hatk = -hatj}), (barva (črna) {hatj xx hati = -hatk}, barva (črna) {qquad hatj xx hatj = vec0}, barva (črna) {qquad hatj xx hatk = hati}), (barva (črna) {hatk xx hati = hatj}, barva (črna) {qquad hatk xx hatj = -hati},

Kaj je navzkrižni produkt [-1,0,1] in [0,1,2]?

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