A. k
ExplanationStep 1: Identify the concept: this is unit vector cross product. Step 2: By right hand rule i cross j = k. Step 3: Remember cyclic order i j k.
Step 1: concept पहचानें: यह unit vector cross product है। Step 2: Right hand rule के अनुसार i cross j = k होता है। Step 3: i j k cyclic order याद रखें।
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