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Aditi Sharma
Subject: Maths
, asked on 14/12/17
Plz solve
Q48. Show that the vectors
a
→
,
b
→
and
c
→
are coplanar, if
a
→
+
b
→
,
b
→
+
c
→
and
c
→
+
a
→
are coplanar.
Or
Prove that, for any three vectors
a
→
,
b
→
and
c
→
,
a
→
+
b
→
b
→
+
c
→
c
→
+
a
→
=
2
a
→
b
→
c
→
.
Answer
2
Nithyashrri Saravanan
Subject: Maths
, asked on 12/12/17
Pls solve this
Answer
1
Snegaa J. S.
Subject: Maths
, asked on 10/12/17
The charges q1 = 2 µC and q2 = – 4 µC are located at coordinates (–1, –1) and (3, 2) respectively. If we have put one more charge q3 = 8 µC in the line joining the two charges such that the charges maintain an equilibrium, then find the coordinate
Answer
1
Yamini Jayachandran
Subject: Maths
, asked on 10/12/17
Determine K such that a vector r is at right angles to each of the vectors a= Ki+j+3k, b+2i+j-Kk, and c=2i+Kj+3k.
No links please
Thank you :)
Answer
1
Chaitanya Kapoor
Subject: Maths
, asked on 8/12/17
Plzz solve.
Q.23.
a
→
+
b
→
+
c
→
=
0
→
,
a
→
=
3
,
b
→
=
5
a
n
d
c
→
=
7
, find the angle between
b
→
a
n
d
c
→
.
Answer
1
Archana
Subject: Maths
, asked on 6/12/17
the points A, B and C have position vectors 3i-yj+2k , 5i-j+k and 3xi+3j - k are collinear. Find the values x and y and also the ratio in which the point B divides AC.
Answer
1
Varnika Dhiman
Subject: Maths
, asked on 4/12/17
Shouldn't AC vector = i^ -3j^ -5k^ ?!..
Answer
1
Sofiya Parihar
Subject: Maths
, asked on 24/11/17
In ecample 3 i dotn understand that how the three vectors in the answer given are collinear
Answer
1
Ritesh Ranjan Rath
Subject: Maths
, asked on 24/11/17
Q11
Q.11. Given,
a
→
.
b
→
=
12
,
a
→
×
b
→
=
16
a
n
d
b
→
=
2
, find
a
→
.
Answer
1
Subhashini
Subject: Maths
, asked on 17/11/17
Please answer question no 12 in the attached file
Answer
1
Subhashini
Subject: Maths
, asked on 17/11/17
10)
I
f
a
→
×
b
→
=
a
→
×
c
→
,
a
→
≠
c
→
a
n
d
b
→
≠
c
→
,
s
h
o
w
t
h
a
t
b
→
=
c
→
+
t
a
→
f
o
r
s
o
m
e
s
c
a
l
a
r
t
.
Answer
1
Shri Ganesh
Subject: Maths
, asked on 16/11/17
please help me sovle this question
Answer
1
Shubhrajyoti Ghosh
Subject: Maths
, asked on 16/11/17
No links please
C
h
a
p
t
e
r
n
a
m
e
:
V
e
c
t
o
r
16
.
I
f
A
O
→
+
O
B
→
=
B
O
→
+
O
C
→
,
s
h
o
w
t
h
a
t
t
h
e
p
o
i
n
t
s
A
,
B
a
n
d
C
a
r
e
c
o
l
l
i
n
e
a
r
.
Answer
1
Shubhrajyoti Ghosh
Subject: Maths
, asked on 16/11/17
No links please
Chapter name :
Vector
Q15. Let D ,E , F are the midpoints of the sides
B
C
,
C
A
and
A
B
of the triangle ABC. Prove that
A
D
→
+
B
E
→
+
C
F
→
=
0
→
.
Answer
1
Shubhrajyoti Ghosh
Subject: Maths
, asked on 16/11/17
No links please
Answer
1
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What are you looking for?
Q48. Show that the vectors are coplanar, if are coplanar.
Or
Prove that, for any three vectors ,.
No links please
Thank you :)
Q.23. , find the angle between .
Q.11. Given, , find .
Chapter name :
Vector
Q15. Let D ,E , F are the midpoints of the sides of the triangle ABC. Prove that