Unit Vectors Angle Calculation (Jee Mains) | ExamDuo
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Scalar and Vector Products
Medium
Unit Vectors Angle Calculation
If xi + yj and
2
7
i +
6
7
j +
3
7
k are two unit vectors such that angle between them is
π
4
then
SELECT ONE OPTION
A
8 (x + 3y)² = 49
B
4 (x + y)² = 16
C
6 (x + 2y)² = 64
D
None of these
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