The following vector(s) is / are perpendicular to 5k^
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Answer:
3i+4j
Explanation:
as they have given 5k only we have to take i and j as 0 similarly for b also therefore a=0i+0j+5k,b=3i+4j+0k now by taking dot products we get answer as 0 which shows that 3i+4j is perpendicular to 5k.
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