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The area of the triangle formed by the adjacent sides with A=3i+2j-4k and B=-1i+2j+1k is?

The area of the triangle formed by the adjacent sides with A=3i+2j-4k and B=-1i+2j+1k is? 

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Grade:11

1 Answers

Arun
25763 Points
one year ago
Dear student
 
Area = ½ |a x b| = ½ |10 i + j +8k | = ½ (sqrt165)
 
Hope it helps
 
Regards
Arun(askIITians forum expert)
 
 

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