Home
Class 12
MATHS
If bar a is a non-zero vector and |kbara...

If `bar a `is a non-zero vector and `|kbara|=1`then k=

A

a)`|bara|`

B

b)1

C

c)-1

D

d)`+-1/|bara|`

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

If bara,barb and barc are non-coplanar vectors and the four points with position vectors 2bara+3barb-barc,bara-2barb+3barc,3bara+4barb-2barc,kbara-6barb+6barc are coplanar, then k

If bara,barb are non-collinear vectors and x,y are scalars such that xbara+ybarb=bar0 , then...a)x = 0 , but y is not necessarily zero b)y = 0 , but x is nont necessary zero c)x = 0 , y = 0 d)None of these

If bara,barb,barc are three non-zero vectors which are pairwise non-collinear. If bara+3barb is collinear with barc and barb+2barc is collinear with bara , then bara+3barb+6barc is: a) barc b) bar0 c) bara+barc d) bara

If bara,barb and barc be three non-zero vectors, no two of which are collinear. If the vectors bara+2barb is collinear with barc and barb+3barc is collinear with bara , then ( lambda being some non-zero scalar) bara+2barb+6barc is equal to: a) lambdabara b) lambdabarb c) lambdabarc d)0

Given bara, barb, barc are three non-zero vectors, no two of which are collinear. If the vector (bara + barb) is collinear with barc and (barb + barc) is collinear with bara , then : bara+barb+barc =

If bara,barb,barc are non-coplanar vectors then [bar(a)+2bar(b)" "bar(a)+bar(c)" "bar(b)]=

A vector coplanar with the non-collinear vectors bara and bar b is

If bara,barb,barc are non-zero, non collinear vectors, then the vectors bara-barb+barc,4bara-7barb-barc and 3bara+6barb+6barc are