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Manasi Mujumdar
Subject: Maths
, asked on 16/5/18
If resolved part of a vector a along b is a1 and that perpendicular to b is a2 then a1 cross a2 it's equal to
Answer
1
Lavneesh Rajput
Subject: Maths
, asked on 13/5/18
Solve this:
Q.150. If the position vectors of three points are
a
→
-
2
b
→
+
3
c
→
,
2
a
→
+
3
b
→
-
4
c
→
a
n
d
-
7
a
→
+
10
c
→
, then the three points are
(a) collinear
(b) non-collinear
(c) coplanar
(d) None of these
Answer
1
Apurva Inamdar
Subject: Maths
, asked on 25/4/18
7th question
Answer
1
Shri Ganesh
Subject: Maths
, asked on 20/4/18
If a ∙ i = a ∙(j + i) = a ∙ (j + i + k), then a is equal to
Answer
2
Mitali
Subject: Maths
, asked on 19/4/18
How do we find the common point of intersection of this type of equations?
a
1
x
2
+ b
1
y
2
+ c
1
= 0
a
2
x +
b
2
y + c
2
= 0
Answer
1
Shri Ganesh
Subject: Maths
, asked on 19/4/18
please help mesolve this
Answer
1
Muhammad Arafath R Z
Subject: Maths
, asked on 18/4/18
Vector mains 2018
Q.11. The sides of a rhombus ABCD are parallel to the lines, x - y + 2 = 0 and 7x - y + 3 = 0. If the diagonals of the rhombus intersect at P (1, 2) and the vertex A (different from the origin) is on the y-axis, then the ordinate of A is :
1. 2
2.
7
2
3.
5
2
4.
7
4
Answer
1
Muhammad Arafath R Z
Subject: Maths
, asked on 18/4/18
Q. Tangents drawn from the point (-8 , 0 ) to the parabola y
2
= 8x touch the parabola at P and Q . If F is the focus of the parabola , then the area of the triangle PFQ ( in sq. units ) s equal to : (a) 48 (b) 64 (c) 24 (d) 32
Answer
1
Mitali
Subject: Maths
, asked on 17/4/18
Q.
I
f
a
→
=
j
^
+
3
k
^
,
b
→
=
-
j
^
+
3
k
^
a
n
d
c
→
=
2
3
k
^
form a triangle, then find out the internal angle of the triangle between
a
→
a
n
d
b
→
?
Answer
1
Mitali
Subject: Maths
, asked on 17/4/18
Q.
I
f
a
→
=
j
^
+
3
k
^
,
b
→
=
-
j
^
+
3
k
^
a
n
d
c
→
=
2
3
k
^
form a triangle, then find out the internal angle of the triangle between
a
→
a
n
d
b
→
?
Answer
3
Apurva Inamdar
Subject: Maths
, asked on 17/4/18
Please answer 20th question
Q.20. If ABCDEF is a regular hexagon, then AD + EB + FC equals
(a) zero
(b) 2 AB
(c) 4 AB
(d) 3 AB
Answer
1
Apurva Inamdar
Subject: Maths
, asked on 16/4/18
Please answer 5th question
Answer
3
Laieeqa
Subject: Maths
, asked on 15/4/18
23
.
I
f
a
⇀
&
b
⇀
a
r
e
u
n
i
t
v
e
c
t
o
r
s
,
t
h
e
n
a
n
g
l
e
b
e
t
w
e
e
n
a
⇀
&
b
⇀
f
o
r
3
a
⇀
-
b
⇀
t
o
b
e
a
u
n
i
t
v
e
c
t
o
r
i
s
(
A
)
90
0
(
B
)
30
0
(
C
)
45
0
(
D
)
60
0
Answer
1
Laieeqa
Subject: Maths
, asked on 15/4/18
Solve this:
31.
The area of the parallelogram whose adjacent sides are
i
^
+
k
^
a
n
d
2
i
^
+
j
^
+
k
^
i
s
1
2
2
3
3
3
4
4
Answer
1
Royel Ghost
Subject: Maths
, asked on 14/4/18
pls solve it...
Q. If
a
→
,
b
→
,
c
→
are three non-zero vectors , no. too of which are collinear & the vector
a
→
+
b
→
is collinear with
c
→
,
b
→
+
c
→
is collinear with
a
→
then
a
→
+
b
→
+
c
→
is equal to -
a)
a
→
(b)
b
→
(c)
c
→
(d) 0
Answer
2
1
2
3
4
5
Next
What are you looking for?
Q.150. If the position vectors of three points are , then the three points are
(a) collinear
(b) non-collinear
(c) coplanar
(d) None of these
If a ∙ i = a ∙(j + i) = a ∙ (j + i + k), then a is equal to
a1x2 + b1y2 + c1 = 0
a2x + b2y + c2 = 0
Q.11. The sides of a rhombus ABCD are parallel to the lines, x - y + 2 = 0 and 7x - y + 3 = 0. If the diagonals of the rhombus intersect at P (1, 2) and the vertex A (different from the origin) is on the y-axis, then the ordinate of A is :
1. 2
2.
3.
4.
Q. form a triangle, then find out the internal angle of the triangle between ?
Q.20. If ABCDEF is a regular hexagon, then AD + EB + FC equals
(a) zero
(b) 2 AB
(c) 4 AB
(d) 3 AB
31. The area of the parallelogram whose adjacent sides are
Q. If are three non-zero vectors , no. too of which are collinear & the vector is collinear with is collinear with then is equal to -
a) (b) (c) (d) 0