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ABC is an isosceles triangle in which AB equal to AC side BA is produced to D such that AD=AB show that angle BCD is a right angle

Posted by Chinmay Bhatnagar 5 years, 1 month ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Ch-13 full test

Posted by Nitin Sharma 5 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Nitin Sharma 5 years, 1 month ago

Yes

ANSWER

If x+y+z=0,show that x^3+y^3+z^3=3xyz

Posted by Harkirpal Khangura 5 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Chinmay Bhatnagar 5 years, 1 month ago

We know that X3+Y3+Z3-3XYZ=(X+Y+Z)(X2+Y2+Z2-XY-YZ-ZX) PUTTING X+Y+Z=0 X3+Y3+Z3-3XYZ=(0)(X2+Y2+Z2-XY-YZ-ZX) X3+Y3+Z3-3XYZ=0 X3+Y3+Z3=3XYZ

ANSWER

Zero of the zero polynomial is A.0 B.1 C.any real number D.not defined

Posted by Harshita Gautam 5 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Harkirpal Khangura 5 years, 1 month ago

x+y+z=0 x+y=-z x^3+y^3+z^3=3xyz x^3+y^3+z^3-3xyz=(x+y+z)(x^2+y^2+z^2-xy-yz-zx) x+y+z=0 so, we have x^3+y^3+z^3-3xyz=0 x^3+y^3+z^3=3xyz

ANSWER

What is 1+ 1

Posted by Samarth Biradar 5 years, 1 month ago

CBSE > Class 09 > Mathematics

11 answers

Anisha Singh 5 years, 1 month ago

11

Badal Sahu 5 years, 1 month ago

1+1=2(extra ordinary answer)

Parvathy S 5 years, 1 month ago

2

ᗪΗƭ➳?Acker ♪❼ 5 years, 1 month ago

2

Saloni Thakur 5 years, 1 month ago

2

Reno C S 5 years, 1 month ago

2

Chinmay Bhatnagar 5 years, 1 month ago

2

Anku Singla 5 years, 1 month ago

2

Mehakpreet Kaur 5 years, 1 month ago

2

Komal Pankhudi 5 years, 1 month ago

2

Samarth Biradar 5 years, 1 month ago

2

ANSWER

In which quadant abscissa of a point is positive lie

Posted by Prity Kumari 5 years, 1 month ago

CBSE > Class 09 > Mathematics

6 answers

Manas Agarwal 5 years, 1 month ago

1 quadrant

Reno C S 5 years, 1 month ago

1 and 4 quadrant

Chinmay Bhatnagar 5 years, 1 month ago

1,4 quadrant

Komal Pankhudi 5 years, 1 month ago

1st and 4th quadrant

Samarth Biradar 5 years, 1 month ago

1 st & 4 th quadrant

Annu Kumar 5 years, 1 month ago

In first and fourth quadant abscissa point is positive

ANSWER

Factorise:16(2a-3b)square-24(2a-3b)(2a+3b)+9(2a+3b)

Posted by Jaismeen Virk 5 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Anku Singla 5 years, 1 month ago

Let (2a -3b) =x then 16xsq.-24x +9x then do middle splitting

ANSWER

Draw graph of x+y=4 linear equation in two variable

Posted by Bobby Sadiora 5 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Bobby Sadiora 5 years, 1 month ago

Explain

ANSWER

What is interior angle

Posted by Purushottam Sahu 5 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

Manas Agarwal 5 years, 1 month ago

An angle which is in the figure

Parmjeet Singh 5 years, 1 month ago

The angle which us in the figure

ANSWER

2+2 gives what's

Posted by Yash Chhajer 5 years, 1 month ago

CBSE > Class 09 > Mathematics

5 answers

Badal Sahu 5 years, 1 month ago

2+2=4(extra ordinary answer

Komal Pankhudi 5 years, 1 month ago

4

Jaismeen Virk 5 years, 1 month ago

4

Rakshita Mishra 5 years, 1 month ago

4

Purushottam Sahu 5 years, 1 month ago

4

ANSWER

(A+B)^2=?

Posted by Choti 123456 5 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

Shalnitya Devi 5 years, 1 month ago

a² + b² + 2ab

Rishav Jha 5 years, 1 month ago

A^2+2AB+B^2

ANSWER

Write x"5, in standard form of linear equation in2 variables and find a,b and c

Posted by Narayana Sahu 5 years, 1 month ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

An object is sold at 10%profit at 550 rupees. What will be the profit pecentage if the same object is sold at 650 rupees?

Posted by Ayush Kumar 5 years, 1 month ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

state exterior angle property of a triangle

Posted by Pavan T S Pavan 5 years, 1 month ago

CBSE > Class 09 > Mathematics

3 answers

Badal Sahu 5 years, 1 month ago

Exterior angle is equal to the sum of 2 opposite interior angle

Badal Sahu 5 years, 1 month ago

Exterior angle is equal to the sum of 2 interior opposite angles

Divya Sheoran 5 years, 1 month ago

Exterior angle = the sum of two interior opposite angles

ANSWER

a - 1 by a into m + 1 into a square minus 1 by a square into x power 4 + 9 + 1 by x power 4

Posted by Satyam Kumar 5 years, 1 month ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Underoot 256 ko bahar solutio

Posted by Anita Negi Anita Negi 5 years, 1 month ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Ashit

Posted by Ashit Upadhyay 5 years, 1 month ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

The angle which is twice of its supplement

Posted by Rohan Bamniya 5 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Ayush Raj 5 years, 1 month ago

Let the angle be x and it's supplement 180-x then, x =2(180-x) => x=360-2x => 3x = 360 => x= 360/3 Therefore x = 120

ANSWER

A,b,c is a triangle in which AB and AC are produce point B and Q and CO are divindent of PBC and QTB .prove that angle BOC is half of 90° of angle A

Posted by Kesav Kumar 5 years, 1 month ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

A rhombus shaped field has green grass for 18 cows to Grace full stop if each side of the Rhombus is 30 metres and its longer diagonal is 48, how much area of grass field will each cowgrazing?

Posted by Tejas Agrawal 5 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

Komal Pankhudi 5 years, 1 month ago

48m²

Gaurav Seth 5 years, 1 month ago

S=30+30+48/2
s=54
area=√54(54-30)(54-30)(54-48)
area=432m²
area×2/18
432×2/18
864/18
48m²
Therefore,every cow will get 48m² to graze

ANSWER

If each angle of a triangle is greater than the sum of the other two show that the trangle is obtuse angled

Posted by Dilip Kumar 5 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

Gaurav Seth 5 years, 1 month ago

let x,y,z be the angle of a triangle

now, if x+y+z=180

if x=90,theny+z=90,x=y+z

then it is right angle triangle

if x>y+z

then x must be greater than90

otherwise either x is 90 or less than90

so it is a abtuse angle triangle

Tejas Agrawal 5 years, 1 month ago

Don't know

ANSWER

If x+y+x=0 then find x2+Y2+x2

Posted by Kamal Jyoti 5 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Sakthi Sanjuktha 5 years, 1 month ago

6

ANSWER

Find values of a and b for (3-underroot5)/(3+2underroot)=aunderroot5 -b/11

Posted by Alig Raza 5 years, 1 month ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Prove that root2is an irrational number

Posted by The Mesmerizers 5 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 5 years, 1 month ago

Given √2 is irrational number.
Let √2 = a / b wher a,b are integers b ≠ 0
we also suppose that a / b is written in the simplest form
Now √2 = a / b ⇒ 2 = a² / b² ⇒ 2b² = a²
∴ 2b² is divisible by 2
⇒ a² is divisible by 2
⇒ a is divisible by 2
∴ let a = 2c
a² = 4c² ⇒ 2b² = 4c² ⇒ b² = 2c²
∴ 2c² is divisible by 2
∴ b² is divisible by 2
∴ b is divisible by 2
∴a are b are divisible by 2 .
this contradicts our supposition that a/b is written in the simplest form
Hence our supposition is wrong
∴ √2 is irrational number.

ANSWER

How to find area of triangle when sides are in ratio?

Posted by Vaishali Sancheti 5 years, 1 month ago

CBSE > Class 09 > Mathematics

1 answers

Shreya Sood 5 years, 1 month ago

We can take the sides x and then we can multiply the finded value of x with the number in ratio.

ANSWER

if A=7-4root3 tan find root a+1/roota

Posted by Anshuldev Dev 5 years, 1 month ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

if(×+3,6)= (6,y+2) then the co- ordinates if (x,y) are

Posted by Prity Kumari 5 years, 1 month ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

In triangle abc angle a + angle b is equal to 80 degree and Angle b + angle c is equal to 150 degree find the measure of each angle of triangle ABC.

Posted by Pooja Jain 5 years, 1 month ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

How can i pass in maths exam . plzz tell me idea

Posted by Gaurav Sen 5 years, 1 month ago

CBSE > Class 09 > Mathematics

3 answers

Ansh Verma 5 years, 1 month ago

Study hard

Harish Kumar 5 years, 1 month ago

Padh ke

Rishav Jha 5 years, 1 month ago

In my exam most of the question were from ch lines and angle , quadrilateral and heron s formula

ANSWER

What are vertically opposite angles.

Posted by Pari Bathla 5 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

Ansh Verma 5 years, 1 month ago

When two parralel lines cutting by a third line

Pavan Aarya 5 years, 1 month ago

When 2 lines intersect each other then the angles formed is called vertically opposite angles

ANSWER

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