jika p=(1,-3,2), q=(1,1,0) dan r=(2,2,-4) maka nilai | 3p-5q+r | =...

| 3p-5q+r |
= | 3(1,-3,2) - 5(1,1,0) + (2,2,-4) |
= | (3,-9,6) - (5,5,0) + (2,2,-4) |
= | (3-5+2, -9-5+2, 6-0-4) |
= | (0, -12, 2) |
= akar (0)^2 + (-12)^2 + (2)^2
= akar 144+4
= akar 148 = 2 akar 37

Maaf kalo salah

Menurut saya...................