Vector Algebra

CBSE XII Science Maths Vector Algebra

If a,b,c are 3 mutually perpendicular vectors of the same magnitude, prove that a+b+c is equally inclined with vectors a,b and c.

CBSE XII Science Maths Three Dimensional Geometry

How can we find out foot of perpendicular and image of a point in plane ?

Gow can we find out equation of plane passing through 2 planes?

CBSE XI Science Maths Straight Lines

How to approach to its answer...

 

Asked by nitishkrnehu09 23rd November 2017 9:48 AM

Answered by Expert

If a,b are two vectors then prove that (a/|a|^2  -  b/|b|^2)^2 = (a-b)^2 / (|a|^2|b|^2)^2.

JEE Plances ALL Class Maths 3D Geometry

Answer this please

JEE Plances JEE (Main) Maths

A vector a has components 2p and 1 with respect to a rectangular Cartesian system. This system is rotated through a certain angle about the origin in the counter clockwise sense. If, with respect to the new system, vector a has components p+1 and l, then p=?  

JEE Plances JEE (Main) Physics

Find the vector area of a triangle whoose vertices are a,b,c

JEE Plances JEE (Main) Physics

Solve the following

CBSE XI Science Physics Physical World

Show that A vector . B vector = 1/4 [(A vector + B vector)2 - ( A vector - B vector)2].

CBSE XI Science Physics Physical World

If A vector and B vector = 0 vector and A vector . B vector = 0, does it imply that one of the vectors A vector or B vector must be a null vector?

JEE Plances JEE (Main) Maths

Sir  Pl solve qs no 57 as attached

JEE Plances JEE (Main) Maths

Sir Pl solve ques no 15

JEE Plances JEE (Main) Maths

Sir pl solve qs no-5

CBSE XI Science Physics

Prove that-

CBSE XII Science Maths

Find the value of  i X ( j + k) + j X ( k + i) + k X ( i + j)         i j and k and k are unit vector Give complete solution do not go shortcut

CBSE XII Science Maths

if vector a =  4 i + 5j – k , vector b = i – 4j + 5 k  and vector c = 3i + j – k, find a vector d  which is perpendicular to both vector a and vector b for which a vector . d vector = 21         i j and k and k are unit vector  

CBSE XII Science Maths

verify that a x ( b + c) = ( a x b) + ( a x c) a = i – j – 3k  b = 4i – 3j + k c = 2i – j +2k a , b and c are vector         i j and k and k are unit vector

CBSE XII Science Maths

verify that a x ( b + c) = ( a x b) + ( a x c)   a = 4i – j + k b = i + j + k  c = i- j + k a , b and c are vector         i j and k and k are unit vector

CBSE XII Science Maths

  find area of IIgm whose diagonals are represented by vectors  d1 = 2i – j + k  d2 = 3i + 4j – k i j and k and k are unit vector

CBSE XII Science Maths Vector Algebra

using vectors find the area of triangle ABC whose vertices are: A(1,1,2)  B(2,3,5) AND C(1,5,5)

CBSE XII Science Maths Vector Algebra

 using vectors find the area of triangle ABC whose vertices are: A(1,-1,2) B(2,1,-1)AND C(3,-1,2)

CBSE XII Science Maths

Show that the points having position vector a , b , ( c = 3 a – 2b) are collinear whatever a b and c a , b and c are vector     explain in great detail

CBSE XII Science Maths

Find a unit vector perpendicular to the plane ABC, where the points A,B,C  are(3,-1,2) , (1 ,-1, -3) and ( 4, -3, 1) respectively explain in great detail

CBSE XII Science Maths

If a =  i – 2j + 3k and b = i – 3k  then find I b X 2aI    i j and k and k are unit vector

CBSE IX Physics

In the diagram vector A has magnitude 12 m and vector B has magnitude 8 m. The x component of vector a + vector b is about A) 5.5m      B) 7.6m      C) 12m      D) 14m

JEE Main Maths Three Dimensional Geometry

let ABC be a triangle with position vectors of its erties as 7j+10k,-i+6j+6k and -i+4j+6k.Then AB is a 

JEE Main Physics Kinematics

Let  magnitude of three vectors a=2; b=3 ; c=6. Angle between any two vector is 120 degree and the vector are coplaner ,find magnitude of resultant vector

ICSE XI Science Physics

What is the component of 3i^+4j^ along i^+j^

JEE Main Physics

Ram in his Santro accelerates at the rate of (3i^−2j^)(3i^−2j^) m/s2,m/s2, while Shyam in his Maruti accelerates at (6i^+2j^) m/s2(6i^+2j^) m/s2. They both start from rest at the origin of an xy coordinate system. After 5s. How far apart are the  

CBSE XI Science Physics

If two vectors a=3i+4j and b=-i-4j. Calculate the direction of a+b

CBSE XI Science Physics

v vector = 2icap + 3jcap ; a vector = icap + jcap. find rate of change of direction at an instant?

JEE Main Physics

there are A,B and A+B non zero vctors and A+B is perpandicular to vector B sooo

A A>B

B A>=B

C A>B/

D A>=B/

NEET NEET Physics Physics and Measurement

Kind of struggling with this particular vector problem. How should i THINK through it?  

NEET NEET Physics

What is the value of x

JEE Main Physics

At what angle should two force vectors 2f and √2f act so that the resultant force is √10f

NEET NEET Physics

Solve it sir

NEET NEET Physics

If the resultant forces inclined at 60° to each other is ✓3Q, what will be their resultant if they are inclined at 120° to each other.

NEET NEET Physics

If resultant of two vectors a & b is shown in the figure is ✓7b. The value of a/b.

NEET NEET Physics Kinematics

Please solve question 30

CBSE XI Science Physics

two vectors A and B have equal mag itudes.if magnitudes of A+B is equal to n times the magnitude of A-B.What is the angle between A andB? IS THESE TYPES OF QUESTIONS IMPORTANT FOR OUR EXAMINATION POINT OF VIEW?  

CBSE XI Science Physics

what is the angle between vector A and resultant of vector A+B AND vector A-B ?

CBSE XI Science Physics

the resultant of vector A and vector B IS perpendicular to vector A.What is the angle between vector A AND VECTOR b? is this type of questions important....??

CBSE XI Science Physics

if the sum of two unit vectors is a unit vector,then calculate magnitude of their differnce.

CBSE XI Science Physics

Two orces equal to P newton and 2P newton and 2P Newton act on a particle.if first be doubled and second be increased by 20N,the direction of the resultant is unaltered.Find the value of P.

NEET NEET Physics

Doubt

CBSE XI Science Physics

If a​​​​​​vector=2i^+2j^+k^,bvector=-1^+j^+2k^ and cvector =3i^+j^ such that avector +lemda b​​​​​​ vector is perpendicular to c​​​​​vector,find lemda

CBSE XI Science Physics

why vectors are not subtracted

CBSE XI Science Physics

OA, OB and OC represent in magnitude and direction three vectors P, Q and R. If P + Q = 2R, prove that C is the midpoint of AB.

CBSE XI Science Physics

  find the angle between the vectors Ä= i^ -2j^ + 3k^ and b vector = -i^ + 2j^ + 3k^  

NEET NEET Physics

Maximum minimum magnitudes of the resultant do two vectors of magnitude P and q are found to be 3:1  what is the relation

CBSE XII Science Maths Vector Algebra

Plz answer circed question using the figure alongside

CBSE XI Science Physics

THE angle b/w A=(i cap+j cap) and B=(i cap-j cap) is

CBSE XII Science Maths Vector Algebra

a=-2i+j-3k,b=5i+3j-2k if 3a+2b-c then third vector is

CBSE XI Science Physics Motion in a Plane

List of vector formulas

NEET NEET Physics Kinematics

If |a-b| = |a| = |b|, then the angle between a and b is? (VECTORS)

CBSE X Physics

Please solve following

CBSE XI Science Physics Physical World

two vectors a and b have sum of their magnitude as 20. if magnitude of their resultant is 6 and perpendicualr tot the smaller vector, find a and b.

CBSE XI Science Physics

Vectors: What do you really mean by 'formula for projection of

CBSE XI Science Physics

What is meant by ' projection of a vector on b'? Is it related to components? What's the formula and derivation?

CBSE XI Science Physics Motion in a Plane

Find the cosine angle between vector 4i + 3j + k and 2i- j+2k.Find the cosine angle between vector 4i + 3j + k and 2i- j+2k.

CBSE XI Science Physics

It is given that the sum of two-unit vectors is a unit vector. Magnitude of their difference is a)1.414.... b)1.732.... c)2.236.... d)1

CBSE XI Science Physics Motion in a Plane

If IA×B| = A•B, what is the angle between A and B?

ICSE XII Science Physics

Please give answer these questions

CBSE XI Science Physics Motion in a Plane

let angle beyween two nonzero vectors A bar and Bbar 120° and resultant be C bar

CBSE XI Science Physics Motion in a Plane

Doubt in attached image

NEET NEET Physics Kinematics

the unit vector perpendicular to A=2i+3j+k and B=I+j+k is

CBSE XI Science Physics Motion in a Plane

Find the resultant and the direction of resultant of two vectors A and B with angle  between them

CBSE XII Science Maths Vector Algebra

v=e^xyz(i+j+k) find curl v

NEET NEET Physics Kinematics

pls explain this answer ..

JEE Main Maths Vector Algebra

CBSE XI Science Physics Motion in a Plane

if |A|=|B|=|A-B|, then find the angle b/w the two vectors

JEE Main Physics Kinematics

Consider three vectors vector A, vector B, vector C. It is given that vector A and vector B lie in the x-y plane and the direction of vector C is along (+k^). Also, it is known that |vector A|=10 and |vector B|=6 units and the three vectors are related by the relation vector A=vector B - alpha(vector B X vector C), where alpha is some postive constant. Now, if only the magnitude of vector C is doubled, then what should the magnitude of vector B be, for which vector A remains unchanged (both in magnitude and direction)?

JEE Main Physics Kinematics

boy a is standing at a point 3 m west and 4 m south to boy b. assume the east and the north towards the positive x and y axis of coordinate system. boy a starts moving along a vector a =1.5 i +2 j with a constant speed of 2m/s for 5 seconds and stops. now how far is the boy a from the boy b

JEE Main Physics Kinematics

find the vector which is perpendicular to both A and B but have magnitude equal to that of B A=3i^-2j^,b=4i^+3j^-k^

NEET NEET Physics Kinematics

explain

NEET NEET Physics Kinematics

explain

NEET NEET Physics Kinematics

explain

JEE Main Physics Kinematics

if vector P +vector Q = vector R and vector P vector - vector Q = vector S , then R²+S² is equal to

CBSE XII Science Maths Vector Algebra

If |𝑎⃗| = 3 and −1 ≤ 𝑘 ≤ 2, then |𝑘𝑎⃗| lies in the interval (a) [0,6] (b) [−3,6] (c) [3,6] (d) [1,2]

NEET NEET Physics Kinematics

solve without using vectors