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express vector a vector = 5i-2j+5k as sum of 2 vectors such that 1 is parallel to vector b and and other is perpendicular to vector b where b = 3i+k
the scaler pdt of the vector i+j+k with a unit vector along the sum of vectors 2i+4j-5k and lambda i +2j +3k is equal to 1 find the lambda
The 2 vectirs j +k and 3i-j+k represents the tow sides AB and AC respectively of a triangle ABC.the length if the median through A is
prove it by vector methods prove that a/sina= b/sinb = c/sinc by vector method and also proff cosine formula by it
prove that b= c cos a+ a cosc by vector method
If a,b,c and d are the vector quantity , then (a x b) x (c x d) is a vector
a. perpendicular to a,b,c and d
b. along the line of intersection of two planes , one containing vector a,b other containing c and d
c. equally inclined to both vector (a x b) and vector(c x d )
d. none of these
If a vector and b vector are the position vectors of A and B ,respectively ,find the position vector of a point C in BA produced such that BA =1.5 BA.
If sec2A i + j + k , i + sec2B j + k , and i + j + sec2C k are coplanar , then cot2A + cot2B + Cot2C is
a. equal to 1
b. equal to 2
c. equal to 0
d. not defined
this message is specially for vipin verma which always give incomplete answer vepin verma sir if u dont want to ans queries plz dont answer student query but dont do the formality and tolerating ques as i observe from 5 time u dont want to give proper and complete soln
as earlier when i remind u then u correct soln we r not ur servant that always reposting our queries u r always delaying in answering and which is always in complete
u see in this
expert in exam is the derivation of integration formula can be asked in exam and how can i answer that proof of formula
integrate ex(logsinx+ cosx)dx limit from pie by 4 to pie by 2
Asked byKeshav Kr4 days, 16 hours agoSubject:Math1Answer
Yes integrate using limits can be asked in the examination.Just go through the NCERT examples and solve the limit sum exercise.
Posted byVipin Verma(MeritNation Expert) 3 hours, 21 minutes ago
2- u see here this is alsoincomplete
Asked byKeshav Kr3 days, 16 hours agoSubject:Math1Answer
Let the vector parallel tois n( 3i + k ), and a vector perpendicular to this will be ofthe form.xi+ yj + zk.
Since these two vectors on adding gives us the vector a, we can write the following equations.
x + 3n = 5
y = -2
z+ n = 5
Now, sincevector xi + yj + zk is perpendicular to vector b, their dot product must be zero. Satisfying that condition we get this..
3x + z = 0
z = -3x
and now on sloving the above 3 equations we get
n = 2
x = -1
and z = 3
Therefore the two vectors are obtained in which 6i + 2k is parallel and -i - 2j + 3k is perpendicular to vector b.
The solution obtained can also be checked :
( 6i + 2k) + ( -i - 2j + 3k ) = 5i - 2j + 5k , which is the given vector.
Posted byVipin Verma(MeritNation Expert) 1 day, 17 hours ago
prove by method of vectors that in a tri angle a/sinA=b/sinB=c/sinC.
let u, v,w be vectors such that u+v+w=0 u=3, v=4, w=5 find 47 costhita and u.v+v.w+w.a
2- if a= 2i-3j+4k ,b= 3i+2j-4k, c= 4i-3j+5k which is meaningful and how can we evaluate this (a.b)crossc, a cross(b crossc), a.(bcrossc) how we can solve this type of prob
if 3 vectors r coplaner prove that a+b,b+c,c+a r coplaner is a-b,b-c, c-a r also coplaner if yes tell me how
2 is right bisector of sides of a triangle r concurrent and internal bisectorof a triangle r concurrent is both r same or diff if diff mention their proff by vector method
Prove that the lines joining the vertices of a tetrahedron to the centroids of the opposite faces are concurrent.
Please explain briefly :
A vector a has components 2p and 1 with eith respect to a rectangular cartesian sysytem . This system is rotated through a certain angle about the origin in the counter - clockwise sense . I with respect to the new system vector a has components p+1 and 1, then
a. p =0
b. p =1,or p = -1/3
c. p =-1
d. p =1 or p =-1
Q.Prove that the altitudes in a triangle are concurrent.
THIS PROBLEM IS IN VECTOR ALGEBRA, MATH CHAPTER
Prove by Vector - For Any Triangle ABC, a/sin A = b/sin B = c/sin C = 2R. (WHERE R=CIRCUMRADIUS) - [sine-rule].
Find the area of triangle whose adjacent sides are along vectors 3j and 5k ?
If r = l(b x c) + m(c x a ) + n(a x b) and [a b c ] = 2, then l + m + n is equal to
a. r.[(b x c) + (c x a) + (a x b)]
b. 1/2 r.(a + b + c)
c. [a b c ]
Note that : r, a, b, and c are the vector quantities.
By using vector method prove that the sum of the squares of the diagonals of a parallelogram is equal to the sum of the square of its sides.
please answer asap!!!
if a,b,c are non coplanar unit vectors such that vector triple product of a,b,c is (b+c)/2^1/2. then what is angle between a and b
please help me, a=2i+j+k,b=i+2j+kand c=i+j+2k be three vecters. A vector in the plane of b and c whose projection on a is underroot 2/3 will be,
If G is the centroid of triangle ABC ,then the value GA + GB + GC = ?
Please help soon .
thank you .
Using vectors ,find the value k such that points (k,-10,3),(1,-1,3) and (3,5,3) are collinear.
WHAT ARE COPLANAR VECTORS
angle between the vectors 3/7i - 6/7j+2/7k and6/7i +2/7j -3/7k is
a 30 b 45 c 60 d 15 e 90
Find the equation of the plane containing the two lines i+j+Æ(i+2j-k) and i+j+É(-i+j-2k)
if a=b+c a and c are 3i+j+2k and 2i-2j+2k then mod a+b
a 3 b 2 c 6 d 1 e 4
A vector r vector has magnitude 14 and direction ratios 2,3,-6 .Find the directino cosines and components of r vector ,given that r vector makes an acute angle with x-axis.
if a = i+2j+3k, b= 2i-j+k, c=i+j-2k how i can verify that across(b cross c)= (a.b)c i m getingif a =across(b cross c)= -9i+3k and (a.b)c = 3i+3j-6k explain me how both r equal
2- how to cal volm of parallelopiped whose continuous edge r represented by vectors a= 2i-3j+k, b= i-j+2k, c= 2i+j+k explain the concept of this also
the vectors a=xi +yj +zk , b=j and c are such that a,c,b form a right handed system, the vector c is
1- proff that a cross (across(acrossb)= (a.a)(b cross a ), 2- if a cross b= c cross d and a cross c = b cross d prove that a-d is parallel to b-c prove in depth also see under what i m asked
expert answer queries always delay caused we r nothing get advantage of clearing doubt i always get sweet talk from expert
expert its a humble request plz dont post incomplete soln as earlier vipin verma maths expert posted
if two collinear vectorsa and b are such that a=2i-4j+6k and mod b=root14 then b can be
a 2i-4j+6k b i-2j+3k c i+2j-3k d i+2j+3k e i-2j-3k
Let vector a = -i -k, b = -i+j and c = i+2j+3k be three given vectors. If vector r is a vector such that r x b =c.b and r.a =0, then the value of r.b is ...............
(r, a, b, c are the vactor quantity)
Let OPQR be a parallelogram with O as the origin. The position vectors along OP and OR are respectively. S is a point on OP which divides it in the ratio 1: 3. If SR intersects OQ in M whose position vector is then find the value of . please explain i did not understand what does it meant?
1 if the vector -i+j-k bisect the angle b/w the vector c and the vector 3i+ 4j find the unit vector in the dirn of c explain in better way
2 prove pythagoras theorem by vector method angle a is right angle u have to explain step by step also prove that unit pt of hypotenuse is equidistant from vertices
Asked byKeshav Kr1 week, 4 days agoSubject:Math
if 2i+3j-6k, 6i-2j+3k are two consecutive sides of a triangle,then perimeter of triangle is?
plz ans fast.
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