Question

Guest186

求解這題，謝謝～🙏

7.設ǖ=(6,-12,-6),二(1,2,1)。若方,上方,且à=+à,則
p=
'q=

Answer 1

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綾

令p = (s, 2s, -s)
q = a - p
= (6-s, -12-2s, -6+s)
b•q
= (6-s) + 2(-12-2s) - (-6+s)
= -6s - 12
= 0
s = -2
p = (-2, -4, 2)
q = (8, -8, -8)

Guest186

謝謝你！❤️