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Ghosh Brothers
Subject: Maths
, asked on 26/1/18
1. If
${m}_{1}and{m}_{2}$
are the roots of the equation
${x}^{2}+\left(\sqrt{3}+2\right)\times +\left(\sqrt{3}-1\right)=0$
, then find the area of the triangle formed by the lines y =
${m}_{1}x$
, y =
${m}_{2}xandy=c$
.
2. If
${x}_{1},{x}_{2},{x}_{3}$
are in A.P. and
${y}_{1},{y}_{2},{y}_{3}$
are in A.P. Prove that points
$\left({x}_{1},{y}_{1}\right),\left({x}_{2},{y}_{2}\right)$
and
$\left({x}_{3},{y}_{3}\right)$
are collinear.
3. A(1, 4), B(-1, 2) and C(5, -2) are the vertices of a
$\u2206$
ABC. Find the co-ordinates of the point where the right bisector of BC intersects the median through C.
6. Prove that in a right angled triangle the mid point of the hypotenuse is equidistant from vertices.
Answer
1
Aishwary
Subject: Maths
, asked on 26/1/18
Q-11 both parts fast i am a paid member
Q.11. If (- l, 3), (1, - 1) and (5, 1) are the vertices of a triangle. Find the length of median through first vertex.
OR
The vertices of triangle (x, 1), (y, 2) and (- 3,
${z}^{2}$
). Find the condition that centroid may lie on y-axis.
Answer
3
Sahil Haque
Subject: Maths
, asked on 23/1/18
The angle of elevation of the top of the tower from two points A and B present in the same line and at a distance of 'a and b' respectively from the foot of the tower, are complementary. Prove that height of the tower is
$\sqrt{ab}$
.
Answer
1
R J
Subject: Maths
, asked on 21/1/18
7,8,9
Answer
5
R J
Subject: Maths
, asked on 21/1/18
26,27,28 pls answer ASAP
Answer
7
Champ Jee
Subject: Maths
, asked on 21/1/18
If the vertices of a traingle have integral coordinates, prove that the triangle cannot be equilateral.
Solve it and what is integral coordinates?
Answer
1
Abhishek
Subject: Maths
, asked on 16/1/18
Q.18. If the points A (- 2, b ), B (a, b) and C (4, - 1) are collinear and a - b = 1, find the values of a and b.
Answer
4
Pooja Agarwal
Subject: Maths
, asked on 16/1/18
Solve this:
A(6, 1), B(8, 2), C(9, 4) are three vertices of a parallelogram ABCD. If E is the midpoint of DC, find the area of the triangle AED.
Answer
1
Yasmine
Subject: Maths
, asked on 14/1/18
Q. In what ratio point P(2,-5)divide the line segment joining A(-3,5) and B (4,-9)
Answer
1
Yasmine
Subject: Maths
, asked on 14/1/18
8. Find the mean of the following frequency distribution by using stepdeviation method.
Classes
Frequency
0-10
7
10-20
12
20-30
13
30-40
10
40-50
8
Answer
1
Yasmine
Subject: Maths
, asked on 14/1/18
Q. Find a point on y-axis which is equidistant from A (6,5) and B (-4,3)
Answer
1
R J
Subject: Maths
, asked on 13/1/18
From where does (3q+1)(3q+2) become 2r
Answer
2
Komal Gupta
Subject: Maths
, asked on 13/1/18
Q.16 In what ratio does the y-axix divide the line joining the points (-4,5) and (8,3) . Also, find the point of intersection.
Answer
3
Lakshmi Sridhar
Subject: Maths
, asked on 13/1/18
$\mathit{Q}\mathbf{}\mathbf{5}.LetPSbeamedianofthetrianglePQRwithverticesP\left(2,2\right),Q\left(5,-1\right),R\left(7,3\right).IfTisthepoint\left(1,-4\right)thenSTisperpendicularto\phantom{\rule{0ex}{0ex}}\left(a\right)PQ\phantom{\rule{0ex}{0ex}}\left(b\right)QR\phantom{\rule{0ex}{0ex}}\left(c\right)RS\phantom{\rule{0ex}{0ex}}\left(d\right)PS$
Answer
3
Lakshmi Sridhar
Subject: Maths
, asked on 13/1/18
$\mathit{Q}\mathbf{}\mathbf{6}.Ifthepoints\left(k,k+2\right),\left(2k,4k-1\right),\left(k-1,k\right)arecollinear,thenfindthevalue\left(s\right)ofk.$
Answer
1
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What are you looking for?

2. If ${x}_{1},{x}_{2},{x}_{3}$ are in A.P. and ${y}_{1},{y}_{2},{y}_{3}$ are in A.P. Prove that points $\left({x}_{1},{y}_{1}\right),\left({x}_{2},{y}_{2}\right)$ and $\left({x}_{3},{y}_{3}\right)$ are collinear.

3. A(1, 4), B(-1, 2) and C(5, -2) are the vertices of a $\u2206$ABC. Find the co-ordinates of the point where the right bisector of BC intersects the median through C.

6. Prove that in a right angled triangle the mid point of the hypotenuse is equidistant from vertices.

Q.11. If (- l, 3), (1, - 1) and (5, 1) are the vertices of a triangle. Find the length of median through first vertex.

ORThe vertices of triangle (x, 1), (y, 2) and (- 3, ${z}^{2}$). Find the condition that centroid may lie on y-axis.

Solve it and what is integral coordinates?

Solve this:A(6, 1), B(8, 2), C(9, 4) are three vertices of a parallelogram ABCD. If E is the midpoint of DC, find the area of the triangle AED.

Q. Find a point on y-axis which is equidistant from A (6,5) and B (-4,3)