CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

Find the vector which acts like the angle bisector for the vectors 2^i+2^j+^k and 2^i+4^j+5^k


Solution

The correct option is B
As we know the bisector will lie along
¯a|a|+¯b|b|
Here, ¯a = 2^i+2^j+^k and ¯b = 2^i+4^j+5^k

 Angle bisector=2^i+2^j+^k4+4+12+2^i+4^j+5^k22+42+52
                   =2^i+2^j+^k3+2^i+4^j+3^k25                   =10^i+10^j+5^k+6^i+12^j+9^k15                   =16^i+22^j+14^k15 Answer is hence option (a)

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
QuestionImage
QuestionImage
View More...



footer-image