CBSE > Class 10 > Mathematics | CBSE Board | Homework Help

Comparing given polynomials with px3 + qx2 + rx + t . So, p=1 , q= -3 , r=1 & t=1 Sum of zeros = a-b , a , a+b -q/p =3a -(-3)/1 = 3a 3 = 3a a = 1 The zeros are 1-b,1,1+b Multiple of zeros are = 1(1-b)(1+b) -t/p = 1-b2 -1/1 = 1-b2 1-b2 =-1 1+1 = b2 b2 =2 b = √2 b = +- √2 So, the zeros are a=1 & b=√2 & b=-√2

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1002Adithya K A 5 years, 2 months ago

the polynomial . = And = Hence and .

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The angles of triangle are in A,P, the least being half the greatest. Find the angles

Posted by Akansha ..... 5 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Boobala Guru 5 years, 2 months ago

Here Sum of all angles of a triangle =180 degree -(1) It is given that the three angles are in AP So we consider the three angles as a,a+d,a+2d From (1) a+a+d+a+2d=180 a+a+a+3d=180 3a+3d=180 3(a+d)=180 a+d=60 -(1) And a=30 -(2) Substitute (2) in (1) 30+d=60 d=30 So a+d=30+30=60 a+2d=30+2(30)=30+60=90 Therefore The three angles of a triangle are in AP are 30,60,90.

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Paramveer Singh 5 years, 2 months ago

Hi Akansha here is your answer. But I don't know why this OBJ boxes have come, so neglect it. THANK YOU

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Paramveer Singh 5 years, 2 months ago

It is given that the angles are in AP. Let the angles be a-d, a and a+d. The sum of angles is 180 degree. The value of a is 60. The least being half the greatest find the angle. The value of d is 20. Therefore, the measure of angles are 20, 60, 100.

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8÷2

Posted by Rupesh Choudhary 5 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Gunjan Gunjan 5 years, 2 months ago

Check important questions in Google

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Gunjan Gunjan 5 years, 2 months ago

8÷ 2 = 4

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Abhishek Sharma 5 years, 2 months ago

Mujhe math ke mid term ke important question bata do 2020_2021

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How many formula are there

Posted by Nithin Yadawad 5 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Check whether the following are quadratic equations ?? 1. (x + 1)² = 2(x-3) 2. (x-3) (2x+1)=x(x+5)

Posted by ☆°••(Prateek)••° ☆ 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

☆°••(Prateek)••° ☆ 5 years, 2 months ago

1. Yes 2. Yes

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Find the 20th term from the last of the AP 3,8,13........253

Posted by ☆°••(Prateek)••° ☆ 5 years, 2 months ago

CBSE > Class 10 > Mathematics

4 answers

☆°••(Prateek)••° ☆ 5 years, 1 month ago

158 is the right answer

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Yogita Ingle 5 years, 2 months ago

3,8,13.......,253

To find 20th term form the last term we consider the sequence as follows

a = 253 and d = 3 - 8 = -5

a_n = a + (n - 1)d

a₂₀ = a + (20 - 1)d

= 253 + 19 × (-5)

= 253 - 95

= 158

Hence, the 20th term from the last term is 158.

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A . 5 years, 2 months ago

158

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Rupesh Choudhary 5 years, 2 months ago

368

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Check whether following are quadratic equations (X+1)^2=2(x-3)

Posted by Rishi Shetty 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

A . 5 years, 2 months ago

Yes it is quadratic equation

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Solve the following pair of linear pair by submission method : (1)=x plus y=14

Posted by Sahil Singh 5 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Most repeatedly given questions in boa

Posted by Yogeeth Gk 5 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

5x2-6x-2=0

Posted by Jayra Shaktawat 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

☆°••(Prateek)••° ☆ 5 years, 2 months ago

x = 3/2

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(Cosec theta - cot theta)² =1-cos theta /1+cos theta

Posted by Deva Nandan.V. Rajesh 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 5 years ago

Answer:

Step-by-step explanation:

After cancellation, we get

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Ye ch4 me kon se que remove huehai

Posted by Shrayansh Mishra 5 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Toppr Studyrankers Doubtnut Brainly Topperlearning Quora

Posted by Aryan Pillai 5 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

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Maths me chapter 2 se exercise 2.3 se kon kon se questions remove hue hn reduced syllabus ke accordingly ........?

Posted by Asifa Naaz 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Shubham Saxena ???? 5 years, 2 months ago

Only question 4 of Ex - 2.3 .

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Kritika Pathak 5 years, 2 months ago

Hey! You know maths is very important subject other than all subject so my advice is revise all chapters and questions of mathematics thanku....

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9,15,21,27......

Posted by Palak Singh Palak Singh 5 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Army ?? 5 years, 2 months ago

First term - 9 Common difference - 6

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Tanisha Arora 5 years, 2 months ago

Common difference =6

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Tanisha Arora 5 years, 2 months ago

First term =9

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Show that each of the progressions given below is an ap .find the first term, and common difference and next term of each

Posted by Palak Singh Palak Singh 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 5 years ago

The given progression 9, 15, 21, 27,…………

Clearly, 15 – 9 = 21 – 15 = 27 – 21 = 6 (Constant)

Thus, each term differs from its preceding term by 6. So, the given progression is an AP.

First term = 9

Common difference =6

Next term of the AP = 27 + 6 = 33

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Y no one answering my question??

Posted by Helly Ferandez 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

☆°••(Prateek)••° ☆ 5 years, 2 months ago

What is your question? I will answer.

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Kx-y=2 6x-2y=3 Ke kitne hal honge

Posted by Tausif Akhtar 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 5 years, 2 months ago

For a unique solution, we have

a1/a2 ≠ b1/b2

∴k/6 ≠ −1/2
⇒ k≠3

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Y u were not answering my questions, plz answer fast tommorow is my test?

Posted by Helly Ferandez 5 years, 2 months ago

CBSE > Class 10 > Mathematics

5 answers

Boobala Guru 5 years, 2 months ago

Please once again repeat the question my friend

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Boobala Guru 5 years, 2 months ago

Your question is not clear you are telling that a line pass through origin and it is parallel to x axis but it is not straight line

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Helly Ferandez 5 years, 2 months ago

Now plz reply fast?

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Helly Ferandez 5 years, 2 months ago

What is true about the line x-5=0? (a) lt is a straight line passing through origin b- lt is a straight line parallel to x-axis and at a distance of 5 units from it c- It does not represent a straight line d- lt is a straight line parallel to y-axis and at a distance of 5 units from it.

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Mehak Bajaj 5 years, 2 months ago

What is your question?

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What is true about the line 3y+8=0 A- Parallel to x-axis B- Parallel to Y-axis C- Passing through origin D- Nothing

Posted by Helly Ferandez 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Army ?? 5 years, 2 months ago

passing through the origin... this horizontal line can pass through (0,8/3)

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If two positive integers A and B are written as A=ab cube and B=a cube b square, a, being prime number then HCF (A,B) is

Posted by Khushi Sid 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 5 years ago

p = a²b³

q = a³b

HCF ( p,q ) = a²b

[ ∵Product of the smallest power of each

common prime factors in the numbers ]

LCM ( p , q ) = a³b³

[ ∵ Product of the greatest power of each

prime factors , in the numbers ]

Now ,

HCF ( p , q ) × LCM ( p , q ) = a²b × a³b³

= a∧5b∧4 --------( 1 )

[∵ a∧m × b∧n = a∧m+n ]

pq = a²b³ × a³b

= a∧5 b∧4 ---------------( 2 )

from ( 1 ) and ( 2 ) , we conclude

HCF ( p , q ) × LCM ( p ,q ) = pq

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A piece of cloth costs ₹35. If the piece were 4m longer and each meter costs ₹ 1 less, the cost would remain the same . How long is the piece?

Posted by Shriya Samaga 5 years, 2 months ago

CBSE > Class 10 > Mathematics

2 answers

Pushkar Kharb 5 years, 2 months ago

As u will solve it will come, 35(x+4-x/x(x+4)=1 then 35(4/x2+4x)=1 then 35 will be multiplied to 4 it come 140/x2+4x =1 then 140=x2+4x as it will multiplied by 1 and the quadratic equation come as : x2+4x-140=0. Now solve it by middle term split or the formula given in the book

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Pushkar Kharb 5 years, 2 months ago

U have to write the equation: 35/x - 35/x+4 = 1. Then take 35 common from it and it will left 35 (1/x - 1/x+4)=1, now take the LCM in bracket and then it will come a quadratic equation.

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What is true about the line x-5=0 a- lt is a straight line passing through origin b- lt is a straight line parallel to x-axis and at a distance of 5 units from it c- It does not represent a straight line d- lt is a straight line parallel to y-axis and at a distance of 5 units from it.

Posted by Helly Ferandez 5 years, 2 months ago

CBSE > Class 10 > Mathematics

1 answers

Boobala Guru 5 years, 2 months ago

(X,Y)=(5,5)

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Which of the following is not a linear equation in two variables- a- 3x-8y=2 b- x^-1 + 8y^-1=5^-1 c- 3x+4=0 d- 5y+8=0 Plz reply fast, tommorow is test

Posted by Helly Ferandez 5 years, 2 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Find a quadratic polynomial is with the given number as the sum and product of with zeroes respectively 1 by 4 - 1

Posted by Dilpreet Kaur 5 years, 2 months ago

CBSE > Class 10 > Mathematics

3 answers

Sanskriti Mathur 5 years, 2 months ago

X^2+x+4

1Thank You

Krishna Kala 5 years, 2 months ago

Hlo

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Ifra Ehtesham 5 years, 2 months ago

Sum of zeroes=1 Product of zeroes=4 We know that, x²+(sum of zeroes)x+product of zeroes =x²+x+4

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What is Tyndall effect? Explain with an example ??

Posted by Shubham Saxena ???? 5 years, 2 months ago

CBSE > Class 10 > Mathematics

4 answers

Ifra Ehtesham 5 years, 2 months ago

Scattering of light by dust particles or any other particles is called Tyndall effect In forests when sunlight fallon canopy of trees and falls on the ground then we r able to see dust particles in the path of sunlight

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Yogita Ingle 5 years, 2 months ago

The scattering of light by particles in its path is called Tyndall effect. When a beam of light enters a smoke-filled dark room through a small hole, then its path becomes visible to us. The tiny dust particles present in the air of room scatter the beam of light all around the room. Thus, scattering of light makes the particles visible. Tyndall effect can also be observed when sunlight passes through a canopy of a dense forest. Here, tiny water droplets in the mist scatter light.

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Rahul Kumar 5 years, 2 months ago

It is seen maximum in milk

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Chahat Sharma 5 years, 2 months ago

Tyndall effect is scattering of a beam of light by a medium containing small scattering of a beam of light by a medium containing small suspended particles—e.g., smoke or dust in a room, which makes visible a light beam entering a window.

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Is -4,0,4,8,12,16,...an Ap

Posted by Mohammad Tarkar 5 years, 2 months ago

CBSE > Class 10 > Mathematics