Let A(-2, -l), B(1, 0). C(4, 3) and D(x, y) be the vertices of a parallelogram ABCD taken in order. Since, the diagonals of a parallelogram bisect each other. Therefore coordinates of the mid-point of AC = Coordinates of the mid-point of BD.

(-2+4/2, -1+3/2) = (1+x/2, 0+y/2)

(1,1) = (1+x/2 , y/2)

x+1 = 2, y=2

Therefore (1,2) is the fourth vertex.

1Thank You

Puja Sahoo? 6 years, 10 months ago

fourth vertex is (1,2)

4Thank You

ANSWER

Show that square of an odd positive integer is of the form 8m+1, for some integer m.

Posted by Satyam Krishna 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Geetanand Yadav 6 years, 10 months ago

Take r=0,1,2,3,4,5,6,7 A=bq+r Square both side and then put the value of r you will get the answer

2Thank You

ANSWER

SecA -1/secA+1

Posted by Akansha Verma 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Sejal ??? 6 years, 10 months ago

1-cos theta /1+cos theta

2Thank You

ANSWER

A train travel 180 km at uniform speed if the speed had been 9 km/hr. more . It would have taken 1hr less for the same journey find the speed of the train.

Posted by Ojaswani Arora 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Purvanshi Yadav 6 years, 10 months ago

Let the speed of train be x km/h 180/x - 180/x+9 =1 Solve it and find the answer.

2Thank You

Puja Sahoo? 6 years, 10 months ago

the speed of the train is 36km/h.

2Thank You

Geetanand Yadav 6 years, 10 months ago

Put the formula of distance =speed/time

2Thank You

ANSWER

Find the value of 'a' and 'b' so that 8x^4+14x^3-2x^2+ax+b is exactly divisible by 4x^2+3x-2.

Posted by Moloy Mondal 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Sejal ??? 6 years, 10 months ago

a=-7 and b=2

2Thank You

ANSWER

What is the section formula

Posted by Jatin Pradhan 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 6 years, 10 months ago

the coordinates of the point P(x, y) which divides the line segment joining the points A(x1, y1) and B(x2, y2), internally, in the ratio m1 : m2 are { (m₁x₂+ m₂x₁)/(m₁+ m₂ ) , (m₁y₂ + m₂y₁)/(m₁ + m₂ ) } .This is known as the section formula.

Refer ExamFear video lessons for Proof

The mid-point of the line segment joining the points P(x₁, y₁) and Q(x₂, y₂) is [(x₁+x₂)/2 ,(y₁+y₂)/2]

3Thank You

ANSWER

If sin thita =cos thita what is the value of thita

Posted by Sushant Thareja 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Satyam Krishna 6 years, 10 months ago

Value of thita=45

3Thank You

Purvanshi Yadav 6 years, 10 months ago

The only value of theta is 45. If theta 45 then sin theta = cos theta.

1Thank You

Chandan Kumar 6 years, 10 months ago

3Thank You

ANSWER

If cotA=12/5,then find value of(sinA+CosA)×CosecA is:

Posted by Sushant Thareja 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

T. Yashwanth? 6 years, 10 months ago

Cos tita =sin tita=1 So clearly tita =45

2Thank You

Sejal ??? 6 years, 10 months ago

17/5

2Thank You

ANSWER

2+2+4-5-2

Posted by Abhishek Pal 5 years, 8 months ago

CBSE > Class 10 > Mathematics

3 answers

Yogita Ingle 6 years, 10 months ago

2 + 2 + 4 - 5 - 2
= 4 + 4 - 5 - 2
= 8 - 5 - 2
= 3 - 2
= 1

0Thank You

Satyam Krishna 6 years, 10 months ago

0Thank You

Sushant Thareja 6 years, 10 months ago

0Thank You

ANSWER

Find a distance of point (x,y) from origin.

Posted by Rahul Bajaj 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Vishakha Singh? 6 years, 10 months ago

_/x^2+y^2

1Thank You

ANSWER

Find the distance of a point (x,y) from the orgin

Posted by Josmy Wency 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Abhinav Kumar 6 years, 10 months ago

Root x²+y²

1Thank You

ANSWER

If the mth term of A.p is n and the nth term of A.P is m find the (mn)th term?

Posted by Himanshu Singh 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

The lower window of a house is at the height 2m about the ground and its upper window is 4 m vertically above the lower window at the certain instant the angle of elevation of the balloon from the window are observed to be 60° and 30° respectively find the height of the balloon above the ground

Posted by Rkd Vlogs 6 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

T. Yashwanth? 6 years, 10 months ago

8 METERS

0Thank You

Lionel Messi⚽️ 6 years, 10 months ago

8 meter

0Thank You

Dhruv Prajapati 6 years, 10 months ago

1Thank You

Himanshu Kothari 6 years, 10 months ago

1Thank You

ANSWER

prove that o/o=2

Posted by Sharath Kalyan 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Anushka Jugran_? 6 years, 10 months ago

Silly question that u will never get in class 10

1Thank You

ANSWER

Sec square _ tan square is equal to

Posted by T Kada Bench 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

T. Yashwanth? 6 years, 10 months ago

Sec square - Tan square = 1

0Thank You

Purvanshi Yadav 6 years, 10 months ago

It is one because sec2A- tan2A=1.

0Thank You

Lionel Messi⚽️ 6 years, 10 months ago

Is it theta or x+1.

0Thank You

ANSWER

Places A and B are 80km apart from each other on a highway . A car starts from 'A' and another from'B' at same time . If they move in same direction they meet in 8 hours and if they move towards each other they meet in 1hour 20min . Find the speed of cars .

Posted by Alvina Advin 6 years, 10 months ago

CBSE > Class 10 > Mathematics

4 answers

Purvanshi Yadav 6 years, 10 months ago

Let speed of carA=x and let speed of carB= y. Now; 8x-8y = 80 , therefore x-y=10 ---------(1) 4/3x + 4/3y =80, therefore x+ y= 60 -------(2) On adding (1) and (2) we get 2x= 70 x= 35 and from (1) 35-y=10 y= 25

2Thank You

Honey ??? 6 years, 10 months ago

Car A =35 kmph and car B=25kmph

3Thank You

Anushka Jugran_? 6 years, 10 months ago

Ya, geetanand is ryt

2Thank You

Geetanand Yadav 6 years, 10 months ago

It is given same type Q in NCERT but value may be different

2Thank You

ANSWER

P is a prime number p is an.......... Number

Posted by Manraj Singh 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Geetanand Yadav 6 years, 10 months ago

It can only be divided by own or 1.....

2Thank You

ANSWER

if P is an prime number than p is a. Number

Posted by Manraj Singh 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

K J 6 years, 10 months ago

If p is a prime number, obviously it is also a whole number

0Thank You

ANSWER

The median of the following data is 35 find X

Posted by Shounak Maraskolhe 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 6 years, 10 months ago

The question is incomplete. The answer is with respect to the given question:

Q.If the median of the data is 35, find x in the data given below ,if 45 is changed to 33,find the new median.
24,27,28,31,34,x,37,40,42,45

Given observations are 24,27,28,31,34,x,37,40,42,45
Median of the given data = (34 + x)/2 [Since there are even number of observations]
Given median = 45
Hence, (34 + x)/2 = 45
34 + x = 90
x = 90 - 34 = 56

1Thank You

ANSWER

If sec theta +tan theta is equal to p then find the value of cosec theta

Posted by Vivek Bhatt 6 years, 10 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Sin theta into cos theta upon cos theta into sin theta

Posted by Uday Singh 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

A.K. Mahi ? 6 years, 10 months ago

= 1.

2Thank You

ANSWER

State and prove the Pythagoras theorm

Posted by Bhim Karwasra 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Purvanshi Yadav 6 years, 10 months ago

Phythagoras th. - In a right ∆ the square of hypo. is equal to sum of squares of other 2 sides. Construct a ∆ABC in which D is perpendicular to AC. ∆ADB~∆ABC (By AA similarity) ----(1) Similarly ∆BDC~ABC∆ ------(2) Now; AD/AB=AB/AC (from 1) So by cross multiplying AB2=AD×AC-----(3) Next; DC/BC=BC/AC (from 2) Again by cross multiplying BC2= AC×DC-----(4) Now from adding (3) and (4) we have; AB2+BC2=(AD×AC)+(AC×DC) AB2+BC2= AC(AD×DC) AB2+BC2=AC×AC AB2+ BC2= AC2 {Hence Proved}

1Thank You

Naitik Garg 6 years, 10 months ago

You can get this theorm in ncert book just open the book and see

0Thank You

Priyanshi Mishra 6 years, 10 months ago

See from ncert

1Thank You

ANSWER

2 women and 5 men together finish a embroidery work in 4 days while 3 women and 6 men can finish it in 3 days. Find the time taken by 1 woman alone to finish the work, also that taken by 1 man????

Posted by Vijay Kumar 6 years, 10 months ago

CBSE > Class 10 > Mathematics

3 answers

Purvanshi Yadav 6 years, 10 months ago

Let 1 women finish work in x days and 1man finish work in y days Work of 1 women in a day= 1/x and work of 1 men in a day=1/y Now; 2/x+5/y=1/4 By taking LCM 2y+5x/xy=1/4 So; 2/x+5/y=1/4 8/x+10/y=1 similarly 3/x+6/y=1/3 3y+6x/xy=1/3 3/x+6/y=1/3 9/x+18/y=1 Let 1/x =p nad 1/y =q Therefore; 8a+10b=1 and 9a+18b=1 Solve it and find the answer.

1Thank You

Aftab Sayyad 6 years, 10 months ago

Let time taken by women be x Lrt time taken by one man be y

2Thank You

Chris Gayle? 6 years, 10 months ago

It is a texual question se it on this app ncert solutions of maths L-3

1Thank You

ANSWER

Find the number of coins 1.5cm in diameter and 0.20cm thick,to be form right circular cylunder of height 10cm and diameter 4.5cm

Posted by Suhas Talawar 6 years, 10 months ago

CBSE > Class 10 > Mathematics