If barp = (2,1,3), barq = (-2,3,1), barr...

If `barp = (2,1,3), barq = (-2,3,1), barr = (3,-2,4) and barj` is the unit vector in the direction of Y -axis, then `(2barp+3barq -4barr). barj =`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

DOT PRODUCT OF TWO VECTORS
AAKASH SERIES|Exercise EXERCISE - II|71 Videos
DOT PRODUCT OF TWO VECTORS
AAKASH SERIES|Exercise PRACTICE EXERCISE|57 Videos
DOT PRODUCT OF TWO VECTORS
AAKASH SERIES|Exercise ADDITIONAL EXERCISE|21 Videos
DIRECTION COSINES AND RATIOS
AAKASH SERIES|Exercise ADVANCED SUBJECTIVE TYPE QUESTIONS|8 Videos
ERRORS AND APPROXIMATIONS
AAKASH SERIES|Exercise ADVANCED SUBJECTIVE TYPE QUESTION|15 Videos

AAKASH SERIES-DOT PRODUCT OF TWO VECTORS-EXERCISE - I

If absbara =2, absbarb =3, (bara,barb) = 120^(@), " then " bara.barb =
Text Solution
|
If bar(OA) =bari + 2barj+3bark, bar(OB) = 3bari +barj - 2bark and bar...
Text Solution
|
If barp = (2,1,3), barq = (-2,3,1), barr = (3,-2,4) and barj is the un...
Text Solution
|
(bara.bari)^(2) + (bara.barj)^(2) + (bara.bark)^(2) =
Text Solution
|
If bara " is perpendicular to " bari+barj+ bark " then the vector " b...
Text Solution
|
If absbara =3, absbarb = 4 and (bara,barb) = pi/2," then " abs(bara+ba...
Text Solution
|
If 'theta' is the angle between the unit vectors bara, barb," then " a...
Text Solution
|
If the sum of two unit vectors is an unit vector, the magnitude of the...
Text Solution
|
If absbara =3, absbarb = 4, and (bara-barb) = 5, " then " abs(bara+ba...
Text Solution
|
If abs(bara+barb) = abs(bara-barb), " then " bara.barb =
Text Solution
|
If bara,barb,barc are three vectors such that absbara =1, absbarb = ...
Text Solution
|
If bara = 3bari - 4barj +5bark, barb = 2bari+3barj-bark ," then the an...
Text Solution
|
If bara =-bari+barj+2bark, barb =2bari +barj-bark, barc =-2bari+barj+3...
Text Solution
|
The acute angle made by the line joining the points (1, -3 ,2) and (3,...
Text Solution
|
If bara = bari+2barj+3bark, barb = -bari+2barj+bark, barc =3bari +barj...
Text Solution
|
If the vectors bari -2xbarj-3ybark and bari +3xbarj+2ybark are orthogo...
Text Solution
|
If bara=bari+barj+tbark, barb=bari+2barj+3bark, then the value of 't' ...
Text Solution
|
If the vectors bara =bari - barj + 2bark, barb =2bari+4barj+bark and b...
Text Solution
|
If bara,barb, bara+barb " are unit vectors, then " (bara,barb)=
Text Solution
|
If three unit vectors bara,barb,barc " satisfy " bara+barb+barc =bar0 ...
Text Solution
|