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Per NCERT §6.5, the cross products î × ĵ, ĵ × k̂, k̂ × î equal which respectively?
A−k̂, −î, −ĵ
Bĵ, k̂, î
Ck̂, î, ĵ
D0, 0, 0
Answer & Solution
Correct answer: C. k̂, î, ĵ
NCERT §6.5: right-handed orthonormal triad. Cyclic: i×j=k, j×k=i, k×i=j. î×î=0 etc.
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