Home
Class 12
MATHS
[" [JEE (Main)-2018] "],[" a Let "bar(u)...

[" [JEE (Main)-2018] "],[" a Let "bar(u)" be a vector coplanar with the vectors "],[vec a=2vec i+3hat j-vec k" and "vec b=hat j+hat k" .If "ddot u" is "],[" perpendicular to "vec a" and "vec u*vec b=24," then "|vec u|^(2)" is "],[" equal to "],[[" (1) "336," (2) "315],[" (3) "256," (4) "84]]

Promotional Banner

Similar Questions

Explore conceptually related problems

Let vec u be a vector coplanar with the vectors vec a=2hat i+3hat j-hat k and vec b=hat j+hat k If vec u is perpendicular to vec a and vec u.vec b=24 then |vec u|^(2) is equal to

Let vec u be a vector coplanar with the vectors vec a = 2 hat i + 3 hat j - hat k and vec b= hat j+hatk If vec u is perpendicular to vec a and vec u.vecb=24 then |vecu|^2 is equal to

let vec a=hat i+hat j-hat k and vec b=hat i-hat j-hat k and vec c be a unit vector perpendicular to vec a and coplanarwith vec a and vec b then vec c is

If vec a=hat i+hat j+hat k and vec b=hat j-hat k, find a vector vec c such that vec a x vec c=vec b and vec a*vec c=3

For given vectors,vec a=2hat i-hat j+2hat k and vec b=-hat i+hat j-hat k find the unit vector in the direction of the vector quad vec a+vec b

vec u=hat i+hat j,vec v=hat i-hat j and vec w=hat i+2hat j+3hat k .If widehat n is a unit vector such that vec u*widehat n=0 and vec v*widehat n then |vec w*widehat n| is equal to

If vec a=5hat i-hat j-3hat k and vec b=hat i+3hat j-5hat k then show that the vectors vec a+vec b and vec a-vec b are perpendicular.

If vec a=5hat i-hat j-3hat k, and vec b=hat i+3hat j-5hat k then show that the vectors vec a+vec b and vec a-vec b are perpendicular.

If vec a=5hat i-hat j-3hat k and vec b=hat i+3hat j-5hat k then show that the vectors vec a+vec b and vec a-vec b are orthogonal.