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Syllabus

Find the coordinates of foot of perpendicular from the point (2,3) to the line 3x+4y+8=0.

Q.17 of miscellaneous ex. of N cert book chapter 10 st. line

The base of the equilateral triangle has an equation of x+2y=3 and one of the vertex is (1,1).find the equation of other two sides

the equation of the perpendicular bisectors of sides AB and AC of a triangle ABC are x-y+5=0 and x+2y=0respectively. if the point is A (1,-2), find the equation of line BC.

Two adjacent sides of a parallelogram are 4x + 5y = 0 and 7x + 2y = 0.

If the equation of one of the diagonals is 11x + 7y = 4, find the equation

of the other diagonal.

A line is such that it's segment between the lines 5x-y+4=0 and 3x+4y-4=0 is bisected at the point (1,5) obtain it's equation?

segment PQ formed by joining the points P(4,2,-6) and

Q(10,-16,6).

sir, can u explain me how to find tan inverse in log books..

26. If the equation ax

^{2}- 6xy + y^{2}+ bx + cx + d = 0 represents a pair of lines whose slopes are m and m^{2}, the value(s) of a is/are-(A) a = -8

( B) a = 8

(C) a = 27

(D) a = -27

find the coordinates of the incentre and centroid of the triangle whose sides have the equation 3x -4y=0, 12y+5x=0, y-15=0.

also please tell me what is incentre, circumcentre, orthocentre and centroid in a triangle

two sides of an isocesle triangle are given by the equation 7x-y+3=0 and x+y-3=0. if its third side passes through the point (1,-10) then its equations are-

The hypotenuse of a right angled triangle has its ends at points

(1,3)and(-4,1).Find the equation of the legs (perpendicular sides) of the triangle.Find the image of the point (1,2) in the line x-3y+4 =0

find the locus of a point equidistant from the lines x+y+4=0 and 7x+y+20=0.

Find the equations of the lines which pass through (4,5) and make equal angles with lines 5x-12y +6 =0 and 3x-4y-7=0

the distance of the point (3,5) from the line 2x +3y - 14 = 0 measured parallel to the line x - 2y = 1 is ?

a) 7/ root 5

b) 7/ root 13

c) root 5

d) root 13

Q. Line x/6 +y/8 =1 intersects the x and y axes at M and N respectively. If the coordinates of the point P lying inside the triangle OMN (where 'O' is origin) are (a, b) such that the areas of the triangle POM, PON and PMN are equal. Find

(a) the-coordinates of the point P and

(b) the radius of the circle escribed opposite to the angle N.

NCERT - miscellaneous exercise ch 10 Q-17

The end points of the hypotenuse of a right angled triangle are (1,3) and (-4,1). Find the equation of the legs of the triangle.

Show that the points A(7,10), B(-2,5) and C(3,-4) are the vertices of an isoceles right-angled triangle.

The area of the triangle formed by the coordinate axes and a line is 6 square units and the length of the hypotenuse is 5 units . Find the equation of the line

find the equation of the line through the intersection of the lines 2x+3y-4 = 0 and x-5y = 7 that has its intercept equal to -4.

A ray of light passing through the point (1, 2) reflects on the

x-axis at point A and the reflected ray passes through the point (5, 3). Find the coordinates of A.excerpts i did this question using rotation of axes by an angle theta and used the formula

X= x cos theta - y sin theta

Y= x sin theta + y cos theta

where X AND Y are cordinates after rotation .

my answer was

a ^2+b^2= p^2 +q^2

pls tell where was the problem

^{2}+ 25b^{2}- c^{2}= 40ab, then the family of lines ax + by + c = 0 is concurrent at the points)Thank You.

The slope of

x-axis is zero and the slope ofy-axis is not defined.HOW AND WHY ??1. find the equation of perpendicular bisectors of the line segment joining the points (1,1) and (2,3)

2. Find the eq of the line which passes through the points (3,4) and the sum of its intercepts on the axes 14

^{1/2}units. The area enclosed by the locus of the point is?Thank You.

Find the orthocentre of the triangle the equation of whose sides are x+y=1, 2x+3y=6, 4x-y+4=0

if A(1,4) B(2,-3) C(-1,-2) are the vertices of a triangle ABC. find

a) the equation of the median through A

b) the equation of altitude through B

c) the right bisector of BC

Find the equation of bisector of angle A of triangle whose vertices are A(4,3) , B(0,0) & C(2,3)

One side of a rectangle lies along the line 4x + 7y + 5 = 0. Two of its

vertices are (–3, 1) and (1,1). Find the equation of other three sides.

Find the equation of the circle passing through the points (1,2), (3,-4) and (5,-6)

if the image of the point(2,1) with respect to a line mirror be (5,2), find the equation of the mirror.

Consider a family of straight lines (x + y) + lambda(2x - y + 1) = 0. Find the equation of the straight line belonging to this family that is farthest from (1, -3).

Kindly please don't refer me the link to a similar question that ha s already been answered as I tried that method but I got a wrong answer.

Thank You.

Find the eq. of the straight lines which go through the origin and trisect the portion of the straight line 3x+y=12 which is intetercepted between the axes of the coordinates.

the diagonal of a square lies along the line 8x-15y=0 one vertex is (1,2). find equations to the side of square passing through it?

prove that the line 12x-5y+7=0 is mid paralell to the lines 12x-5y+7=0 and 12x-5y-13=0.

How to split a pair of line equation of ax

^{2}+2hxy+by^{2}+2gx+2fy+c=0 in the short method?Reduce the equation 3x-2y+4 =0 to intercept form. Hence find the length

Find the slope of the line, which makes an angle of 30° with the positive direction of

y-axis measured anticlockwise.what difference it will get when it become clockwise in place of aticlockwise.

find the equation of the straight line which cuts off intercepts on x axis twice that on y axis and is at a unit distance from the origin

~~The sides of a triangle are given by the equation 3x+4y=10,4x-3y=5, and 7x+y+10=0. Show that the origin lies within the triangle.

Solution:Let BD be the bisector of $\angle $ABC. Then, AD : DC = AB : BCand AB = ${\sqrt{{\left(5+1\right)}^{2}+\left(1+7\right)}}^{2}=10$

BC = ${\sqrt{{\left(5-1\right)}^{2}+\left(1-4\right)}}^{2}=5$

∴ AD : DC = 2 : 1

By section formula, D $\equiv $( 1/3, 1/3)

Distance BD $\sqrt{{\left(5-\frac{1}{3}\right)}^{2}+{\left(1-\frac{1}{3}\right)}^{2}}=\frac{10\sqrt{2}}{3}$.

How did they come up with the first conclusion? AD:DC=AB:BC

find the distance of the point (2,3) from the line 2x-3y+9=0 measured along a line making an angle of 45degreewith the x axis

the coordinates of a point which is at a distance of 1/root2 units from (1,1) in the direction of line x + y - 3= 0answer is (1/2, 3/2)find what the following equation becomes when the origin is shifted to the point(1,1)

x

^{2}+xy-3y^{2}-y+2=0if G is the centroid and I the incentre of the triangle with vertices A(-36,7) ,B(20,7) ,C(0,6) then find the value of GI?

Find the equation of the lines through the point (3, 2) which make an angle of 45° with the line

x–2y= 3.find the equation of passing through the point (3,2) and whose slope is 3/4. find the coordinates of the points on the same line that are 5 units away from the point (3,2)

If the co-ordinates of a variable point P be (acostheta,bsintheta) where theta is a variable quantity, find the locus of P.

If

pandqare the lengths of perpendiculars from the origin to the linesxcosθ–ysinθ=kcos 2θandxsecθ+ycosecθ=k, respectively, prove thatp^{2}+ 4q^{2}=k^{2}a straight line makes an intercept on the y axis twice as long as that on the x axis and is at a unit distance from the origin.determine its equation (pls slove it)Find the equation of a line on which perpendicular from the origin makes an angle of 30 degree with the x-axis and which forma a triangle of area 50/3^1/2 with the coordinate axes ?

find the eqn of the line cutting off an intercept -2 from the y-axis and equally inclined to the axes.

Find the equation of the line through the intersection of lines 3x + 4y = 7 and x – y + 2 = 0 and

Why don 't you eplain in the theory properlycos ω =

+-A/root Asquare +B square ,sin ω =+-B/root Asquare+BsquarePlease tell now and try to explain in the theory itself