If a,b,c be the unit vector such that b is not parallel to c and a×(2b×c)=b then angel that a make with b and c respectively is ?

Question

Aditya Gupta · Answer

the equation becomes: 2[( a.c ) b – ( a.b ) c ]= b b [2( a.c ) – 1]= ( a.b ) c so, a.b= 0 and 2( a.c ) – 1=0 or cos θ=1/2=cos60 so, angle between a and b is 90 degree and angle between a and c is 60 degree

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If a,b,c be the unit vector such that b is not parallel to c and a×(2b×c)=b then angel that a make with b and c respectively is ?

If a,b,c be the unit vector such that b is not parallel to c and a×(2b×c)=b then angel that a make with b and c respectively is ?

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If a,b,c be the unit vector such that b is not parallel to c and a×(2b×c)=b then angel that a make with b and c respectively is ?

If a,b,c be the unit vector such that b is not parallel to c and a×(2b×c)=b then angel that a make with b and c respectively is ?

1 Answers

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