Vector Magnitude and Direction?

3 ⤊

Find ||v||.

(1) v = -6i + 12j + 4k

(2) v = - i - j + k

2007-08-18 03:35:04 · 2 answers · asked by journey 1 in Science & Mathematics ➔ Mathematics

Question 1
|v| = (6² + 12² + 4²)^(1/2)
|v| = (36 + 144 + 16)^(1/2)
|v| = 196^(1/2)
|v| = 14

Question 2
|v| = (1 + 1 + 1)^(1/2)
|v| = √3

2007-08-18 04:26:48 · answer #1 · answered by Como 7 · 2⤊ 0⤋

1)
||v||=sqrt(36 + 144 + 16)
||v||=sqrt(196)
||v||=14

2) ||v||=sqrt(3)

2007-08-18 10:49:14 · answer #2 · answered by Not Eddie Money 3 · 1⤊ 0⤋