If any 3 vector a, b, c are coplanar, prove thata+b, b+c, c+a are coplanar.
Harshitha Cheekala , 10 Years ago
Grade 12
Discuss with Askiitians Tutors> If any 3 vector a, b, c are coplanar, pro...
1 Answers
SHIVANSHU
Last Activity: 10 Years ago
[a b c]=0 (given)
to prove [a+b b+c c+a]=0
use result [a+b b+c c+a]=2[a b c]
here [a b c] => scalar triple prod. of a,b,c vectors
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