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`        The sum,diiference and cross product of two vectors A and B are mutually perpendicular if there magnitude are same and directions are arbitrary.Prove the above statement.         `
one year ago

Arun
23506 Points
```							Let's consider the following cross product(A + B) X (A - B)if the two ar mutually perpendicular then Cosα (where α is the angle between them) would be zeroso,(A + B) X (A - B) = 0thus (A X A) - (B X B) - (A X B) + (B X A) = 0orA2 - B2 = 0  ( A X B = - B X A )thus, we getA = BorA = Bso the two vectors are equal in magnitude
```
one year ago
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### Course Features

• 110 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions