Li-Vector tse lekanang

Khatisong ena, re tla sheba hore na ke li-vector life tse bitsoang li lekana le hore na li ka tseba joang hore na li lekana joang. Hape re tla sekaseka mehlala ea mesebetsi sehloohong sena.

Boemo ba ho lekana ha li-vector

Li-Vectors a и b li lekana haeba li na le tse tšoanang , li robala meleng e le 'ngoe kapa e bapileng, hape li supa lehlakoreng le le leng. Ke hore, li-vectors tse joalo li na le li-collinear, li tsamaisana le ho lekana ka bolelele.

a = b, haeba a ↑↑ b le |a| = |b|.

Hlokomela: li-vector lia lekana haeba lihokahanyo tsa tsona li lekana.

Mehlala ea mesebetsi

Mosebetsi 1

Ke efe ho li-vector e lekanang: a = {6; 8}, b = {-2; 5} и c = {6; 8}.

Qeto:

Har'a li-vector tse thathamisitsoeng lia lekana a и c, kaha li na le likhokahano tse tšoanang:

a_x = c_x = 6

a_y = c_y = 8.

Mosebetsi 2

A re boneng hore na ke molemo ofe n likotsi a = {1; 18; 10} и b = {1; 3n; 10} baa lekana.

Qeto:

Taba ea pele, hlahloba ho lekana ha likhokahano tse tsebahalang:

a_x = b_x = 1

a_z = b_z = 10

Hore tekano e be 'nete, ho hlokahala hore a_y = b_y:

3n = 18, kahoo n = 6.