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Anika Kapoor
Subject: Maths
, asked on 21/12/17
Q.25
Answer
1
Anika Kapoor
Subject: Maths
, asked on 21/12/17
Pls tell ans to Q.6
Q.6. If P(a, b) is the midpoint of the line segment between the axes, show that the equations of line is
x
a
+
y
b
=
2
Answer
1
Aditya Dwivedi
Subject: Maths
, asked on 19/12/17
Please explain Q.7, specially what it means by "the positive direction of y-axis measured anti-clockwise".
Q.7. Find the slope of the line, which makes an angle of
30
°
with the positive direction of y-axis measured anticlockwise.
Answer
2
Arshia Sharma
Subject: Maths
, asked on 18/12/17
Solve this:
Q. Example 77: Let A
0
A
1
A
2
A
3
A
4
A
5
be a regular hexagon inscribed in a circle of unit radius then the product of the lengths of the line segments A
0
A
1
, A
0
A
2
and A
0
A
4
is
(a) 3/4 (b)
3
3
(c) 3 (d)
3
3
/ 2
Answer
1
Arshia Sharma
Subject: Maths
, asked on 18/12/17
Solve this:
Q.Example 71:
The quadrilateral formed by the lines
y = ax + c, y = ax + d
and
y = bx + c
and
y = bx + d
has area 18. The quadrilateral formed by the lines
y = ax +c
,
y = ax – d, y = bx + c
and
y = bx – d
has area 72. If
a, b, c, d
are positive integers then the minimum value of the sum
a + b + c + d
is
(a) 13 (b) 14
(c) 15 (d) 16
Answer
1
Arshia Sharma
Subject: Maths
, asked on 17/12/17
Solve this :
Q
.
A
l
i
n
e
w
h
i
c
h
i
s
a
p
a
r
a
l
l
e
l
t
o
x
-
a
x
i
s
a
n
d
c
r
o
s
s
t
h
e
c
u
r
v
e
y
=
x
a
t
a
n
g
l
e
o
f
45
°
i
s
a
x
=
1
4
b
y
=
1
4
c
y
=
1
2
d
y
=
1
Answer
1
Amitesh Kumar
Subject: Maths
, asked on 17/12/17
Plz fast question 8 exam tomorrow:
8. If the straight line x+y-2=0, 2x-y=0 and ax+by-c=0 are concurrent, then the faciliy of lines 2ax+3by+c=0(a,b,c are non-zero) is current at.
a
2
,
3
b
1
2
,
1
3
c
-
1
6
,
-
5
9
d
2
3
,
-
7
5
Answer
1
Arshia Sharma
Subject: Maths
, asked on 16/12/17
Please give me an explained answer
Example 50: Locus of the mid-points of the intercepts between the coordinate axes by the lines passing through (a, 0) does not intersect
(a) x-axis
(b) y-axis
(c) y = x
(d) y = a
Answer
1
Ashwini Upadhya
Subject: Maths
, asked on 15/12/17
One side of a square makes an angle with x-axis and one vertex of the square is at the origin.Prove that the equations of its diagonals are:
x(sin a+cos a)=y(cos a-sin a) and x(cos a-sin a)+y(sin a+cos a)=a
Answer
1
Amitesh Kumar
Subject: Maths
, asked on 15/12/17
Q7)8and 9 please
Answer
1
Arshia Sharma
Subject: Maths
, asked on 11/12/17
Please explain with diagrams
Example 14 :
If the segment of the line between the lines x
-
y + 2 = 0 and x + y + 4 = 0 is bisected at the origin, the equation of the line is
(a) y + 3x = 0 (b) y + 3y = 0
(b) y
-
3x = 0 (d) x
-
3y = 0
Answer
1
Rajesh
Subject: Maths
, asked on 9/12/17
pls solve
Answer
3
Sambit Sourav Pal
Subject: Maths
, asked on 8/12/17
find the equation of the straight line passing through (3,2) and perpendicular to y=x
Answer
1
Shreya Choudhary
Subject: Maths
, asked on 5/12/17
if the x and y intercept of a line are 9(root3-1) and (root 3+1) respectively then find the equation of the line in normal form
Answer
1
Nura Mohammad
Subject: Maths
, asked on 2/12/17
Y=mx+c is this eq applicable only when y intercept is +ve i.e c=+ve
Answer
1
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What are you looking for?
Q.6. If P(a, b) is the midpoint of the line segment between the axes, show that the equations of line is
Q.7. Find the slope of the line, which makes an angle of with the positive direction of y-axis measured anticlockwise.
Q. Example 77: Let A0 A1 A2 A3 A4 A5 be a regular hexagon inscribed in a circle of unit radius then the product of the lengths of the line segments A0A1, A0A2 and A0A4 is
(a) 3/4 (b)
(c) 3 (d) / 2
Q.Example 71: The quadrilateral formed by the lines y = ax + c, y = ax + d and y = bx + c and y = bx + d has area 18. The quadrilateral formed by the lines y = ax +c, y = ax – d, y = bx + c and y = bx – d has area 72. If a, b, c, d are positive integers then the minimum value of the sum a + b + c + d is
(a) 13 (b) 14
(c) 15 (d) 16
8. If the straight line x+y-2=0, 2x-y=0 and ax+by-c=0 are concurrent, then the faciliy of lines 2ax+3by+c=0(a,b,c are non-zero) is current at.
(a) x-axis
(b) y-axis
(c) y = x
(d) y = a
x(sin a+cos a)=y(cos a-sin a) and x(cos a-sin a)+y(sin a+cos a)=a
Example 14 : If the segment of the line between the lines x y + 2 = 0 and x + y + 4 = 0 is bisected at the origin, the equation of the line is
(a) y + 3x = 0 (b) y + 3y = 0
(b) y 3x = 0 (d) x 3y = 0