Home
Class 11
MATHS
Let bara=2bari+4barj-5bark,barb=bari+bar...

Let `bara=2bari+4barj-5bark,barb=bari+barj+bark` and `barc=barj+2bark`. Find the unit vector in the opposite direction of `bara+barb+barc`.

Text Solution

Verified by Experts

The correct Answer is:
`(-(3bari+6barj-2bark))/7`
Promotional Banner

Topper's Solved these Questions

  • MODEL PAPER 9

    VGS PUBLICATION-BRILLIANT|Exercise SECTION B (Short answer type questions)|7 Videos

  • MODEL PAPER 9

    VGS PUBLICATION-BRILLIANT|Exercise SECTION C (Long answer type questions)|7 Videos

  • MODEL PAPER 8

    VGS PUBLICATION-BRILLIANT|Exercise SECTION C (Long answer type questions)|7 Videos

  • MOST IMPORTANT QUESTIONS

    VGS PUBLICATION-BRILLIANT|Exercise MAXIMA & MINIMA (LONG ANSWER TYPE QUESTIONS)|8 Videos

Similar Questions

Explore conceptually related problems

Let bara= bari+ 2barj+ 3bark and barb= 3bari+ barj Find the unit vector in the direction of bara+ barb

Let bara =4bari+5barj-bark, barb = bari - 4barj+5bark and c= 3bari +barj-bark . Find the vector which is perpendicular to both bara and barb whose magnitude is twenty one times the magnitude of barc .

Let bara = 2bari -barj+bark , barb=bari+2barj-bark , barc=bari+barj-2bark be the three vectors. A vector in the plane of barb, barc " and whose projection on " bara " of magnitude " sqrt(2/3) is

Let bara=bari+barj+bark,barb=bari-barj+2bark,barc=xbari+(x-2)barj-bark . If the vector barc lie in the plane of bara and barb then x equals to

If bara=bari+barj-bark,barb=bari-barj+bark,barc is a unit vector perpendicular to bara and coplanar with bara and barb , then barc =

If bara=bari+2barj+3bark, barb= -bari+2barj+bark, barc=3bari+barj and bard is a vector normal to both bara and barb then cos(barc, bard)=