Math, asked by egbadonehimen, 11 months ago

Determine the value a so that A=2i+aj+k and B=4i-2j-2k are perpendicular

Answers

Answered by aparna7777

37

(2i+aj+k)(4i-2j-2k)=0(since perpendicular) 8-2a-2=0 ,6-2a=o ,a=3

Answered by vishwakarmageeta76

1

Answer:

3 is the correct answer

since i×j=0

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