Physics, asked by gunitsrimali1811, 4 months ago

if a=2i-3j+7k , b=i+2k , c=j-k find a.(b×c)

Answers

Answered by anujannu001

0

Answer:

0

Explanation:

let f = b*c=k+j-2i

f. a =-4-3+7=0

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