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Recent questions tagged cross product
+1
vote
1
answer
A force 4i - 3j + 2k passes through the point (–9, 2, 1). Find the component of moment of the force about the axis of reference.
asked
Apr 7, 2019
in
JEE
by
kratos
cross product
jee
jee mains
vector
class-12
+3
votes
1
answer
The distance of the point having position vector -i + 2j + 6k from the straight line passing through the point , 6i + 3j - 4k is :
asked
Apr 5, 2019
in
Class 12
by
kratos
class-12
vector algebra
scalar triple product
cross product
vector
cbse
scalar or dot products
+1
vote
1
answer
Let vector a, b and c be three unit vectors such that vetor |a + b + c| = √3 and vector (a x b).(b x c) + (b x c).(c x a) + (c x a).(a x b) .
asked
Apr 4, 2019
in
JEE
by
kratos
vector algebra
cross product
jee
class-12
jee mains
scalar or dot products
vector
+3
votes
1
answer
Which one of the following human genes has the longest stretch of DNA (~24 Mb) ?
asked
Mar 18, 2019
in
Class 12
by
kratos
neet
cbse
cross product
aiims
class-11
biotechnology
vector
number systems
class-12
+2
votes
1
answer
If (i, j, k) are three perpendicular unit vector, then the value of i · (j × k) + j · (i × k) + k (i × j) is which of the following ?
asked
Mar 14, 2019
in
JEE
by
kratos
jee main 2020
cross product
jee
jee mains 2019
class-12
jee mains
vector
+1
vote
1
answer
The two adjacent sides of a parallelogram are 2i - 4j + 5k and i - 2j - 3k.
asked
Mar 12, 2019
in
JEE
by
kratos
vector algebra
cross product
jee
vectors
jee mains
vector
class-12
+1
vote
1
answer
A force of 10i - 3j + 6k acts on a body of 5 kg and it displace it from 6i + 5j - 3km to 10i – 2j +7km. The work done is
asked
Mar 9, 2019
in
Class 12
by
kratos
work
vector algebra
cbse
class-11
cross product
scalar triple product
energy and power
class-12
vector
+1
vote
1
answer
If either a=0 or b =0 then a x b =0 Is the converse true? Justify your answer with an example.
asked
Mar 4, 2019
in
Class 12
by
kratos
cbse
vector algebra
cross product
class-12
scalar or dot products
vector
+2
votes
1
answer
If vector a = 2i + 2j - k and vector b = 6i - 3j + 2k, then vector(a.b) is equal to
asked
Mar 4, 2019
in
Class 12
by
kratos
vector algebra
applications of vector algebra
class-11
cross product
vector
scalar or dot products
class-12
+1
vote
1
answer
Find the area of triangle whose adjacent sides are 2i - 3j +5k, -i + 4j + 2k
asked
Feb 23, 2019
in
Class 12
by
kratos
cbse
cross product
scalar triple product
vector
scalar or dot products
class-12
+1
vote
1
answer
If either vector.a =0 or b =0 then a.b=0 but the converse need not be true. Justify your answer with an example.
asked
Feb 15, 2019
in
Class 12
by
kratos
cbse
vector algebra
cross product
class-12
scalar or dot products
vector
+2
votes
1
answer
A unit vector perpendicular to both i + j and j + k is equal to (a) i - j + k (b) i + j + k (c) (i + j + k)/3 (d) (i - j + k)/√3
asked
Feb 2, 2019
in
Class 12
by
kratos
nda
cross product
class-11
bseb model set
vector
class-12
+3
votes
1
answer
If a= 2i-3j+k,b=-i+k and c=2j-k. Find the area of parallelogram whose diagonals are a+b and b+c
asked
Feb 2, 2019
in
JEE
by
kratos
cbse
cross product
jee
vectors
jee mains
vector
class-12
+2
votes
1
answer
Let vector a = 2i + λ1j + 3k, vector b = 4i + (3 - λ2)j + 6k and vector c = 3i + 6j + (λ3 - 1)k be three vectors such that
asked
Feb 2, 2019
in
JEE
by
kratos
vector algebra
cbse
cross product
jee
product of vectors
scalar triple product
cross or vector
jee mains
vector
scalar or dot products
class-12
+3
votes
1
answer
The two adjacent sides of a parallelogram are 2i-4j+5k and i- 2j - 3k. Find the unit vector
asked
Jan 29, 2019
in
JEE
by
kratos
vector algebra
cross product
jee
vectors
jee mains
vector
class-12
+2
votes
1
answer
A force vector F = αi+3j+6k is acting at a point vector r = 2i-6j-12k.
asked
Jan 19, 2019
in
Class 12
by
kratos
system of particles
rotational motion
neet
cross product
class-12
vector
+2
votes
1
answer
The value of magnitude of the vector i x (j + k) + j x(k + i) + k x (i + j)
asked
Jan 12, 2019
in
Class 12
by
kratos
vector algebra
cross product
vector
scalar or dot products
class-12
+1
vote
1
answer
angle between diagonals of a parallelogram whose side represented by vector a =2i + j + k and vector b = i -j - k.
asked
Jan 12, 2019
in
Class 12
by
kratos
cbse
vector algebra
cross product
vectors
vector
class-12
+3
votes
1
answer
Find a vector of magnitude 6, which is perpendicular to both the vectors 2i - j + 2k and 4i – j + 3k .
asked
Jan 5, 2019
in
JEE
by
kratos
vector algebra
class-11
jee
vectors
product of vectors
cross product
cross or vector
jee mains
vector
class-12
+1
vote
1
answer
By vector method, show that in a parallelogram, the sum of the squares of the diagonals is twice the sum of the squares of its adjacent sides.
asked
Jan 4, 2019
in
Class 12
by
kratos
pythagoras theorem
vector algebra
cross product
class-11
class-10
vector
scalar or dot products
class-12
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