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if a,b,c are 3 unit vectors such that a is perpendicular to the plane of b, c and the angle between b,c is pi\6 then find |a+b+c|

 if a,b,c are 3 unit vectors such that a is perpendicular to the plane of b, c and the angle between b,c is pi\6 then find |a+b+c|
 

Grade:11

1 Answers

Arun
25758 Points
2 years ago
Dear student
 
579-639_IMG_20190123_194123.jpgPFA
 
I have attached the image. ontianing solution. Please check and let me know if there is any difficulty 

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