choose the correct answer from the given...

choose the correct answer from the given alternatives :3 the projection of the vector `vec a =2hat i - hat j +hat k` on the vectors `hat b= hat i- 2 hat j +hat k` will be

A

`5/sqrt 6 unit `

B

`2/sqrt 6 unit `

C

`3/sqrt 5 unit`

D

`4/sqrt 5 unit`

Text Solution

Verified by Experts

Topper's Solved these Questions

HIGHER SECONDARY EXAMINATION 2020.
UNITED BOOK HOUSE|Exercise EXERCISE|40 Videos
HIGHER SECONDARY QUESTION 2019
UNITED BOOK HOUSE|Exercise EXERCISE|40 Videos

Similar Questions

Explore conceptually related problems

find the projection of the vector vec a=2hat i+3 hat j+2 hat k , on the vector vec b=hati+2hatj+hat k

Find the unit vector in the direction of the vector vec a= hat i+ hat j+ 2 hat k .

Find the projection of vector hat i+3 hat j+7 hat k on the vector 7 hat i- hat j+8 hat kdot

Find the angle between the vectors vec a= hat i+hat j-hat k and vec b=hat i-hat j+hat k

The scalar projection of vec(a) = 2 hat (i) - 3hat(j) + hat (k) on vec (b) = 3 hat(i) - 6 hat (j) - 2 hat (k)

if vec a = 2 hat i- 3 hat j+hat k and vec b = hat i+2 hat j- 3hat k then vec aXvec b is

If vec a= 2 hat i- hat j+ hat k and vec b = - hat i+3 hat j+4 hat k ,then veca.vecb =

find the angle between the vectors vec a= 3 hat i +2 hat k and vec b = 2 hat i -2 hat j + 4 hat k

Find the vector of magnitude 3, bisecting the angle between the vectors vec a=2 hat i+ hat j- hat k and vec b= hat i-2 hat j+ hat kdot

Find a vector magnitude 5 units, and parallel to the resultant of the vectors vec a=2 hat i+3 hat j- hat k and vec b= hat i-2 hat j+ hat kdot

UNITED BOOK HOUSE-HIGHER SECONDARY QUESTION 2018-EXERCISE

1.choose the correct answer from the given alternatives:1. if X be the...
Text Solution
|
choose the correct answer from the given alternatives : 2.if A and B a...
Text Solution
|
choose the correct answer from the given alternatives :3 the projectio...
Text Solution
|
choose the correct answer from the given alternatives : the straight l...
Text Solution
|
choose the correct answer from the given alternatives: if the straight...
Text Solution
|
choose the correct answer from the given alternatives : the value of i...
Text Solution
|
choose the correct answer from the given alternative : if f(x)=sinx /x...
Text Solution
|
choose the correct answer from the given alternative : if A ia a squar...
Text Solution
|
choose the correct answerr from the given alternative: let A={1,2,3} a...
Text Solution
|
The principal value of tan^(-1)(-sqrt3) is
Text Solution
|
1 (a) answer any one question :(i) suppose IR be the set of all real ...
Text Solution
|
answer any one question :(ii) if sin^(-1) x=tan^(-1)y , then show that...
Text Solution
|
(b) answer any one question : (i) prove that |[1,a,a^2],[1,b,b^2],[1,...
Text Solution
|
answer any one question A=[[1,0],[-1,7]] and I be the unit matrix of s...
Text Solution
|
(c)answer any three questions: (i) if the function , f(x)={((1- cos(ax...
Text Solution
|
If xsqrt(1+y)+ysqrt(1+x)=0, prove that dy/dx=(-1)/((1+x)^2
Text Solution
|
answer any three questions: (iii) if x>0 ,y>0 and xy=25, then find the...
Text Solution
|
answer any three questions: (iv) a particle moves along the parabola y...
Text Solution
|
verify lagrange's mean value of theorem in the interval 4lexle6 for fu...
Text Solution
|
int (e^x (1+x))/(cos^2(xe^x)) dx is
Text Solution
|