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

Well they don't use to come earlier but now on the new examination pattern has started and also if you see the last year board class 10 maths question paper and ask some good students about the same, you will find that the paper was very tough so it's better if you do the optional expertise.It will only improve your knowledge and understanding of that chapter.Also do solve all the questions from R.D.Sharma ...it will help a lot and I'm sure you will get good marks....

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Find the quadratic polynomial whose one zero is -8 and the sum of the zero is 0

Posted by Nanthni Saran 5 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

Milind Patel 7 years, 7 months ago

K(xsquare-64)

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In chapter introduction to trigonometry there is a mistake . mistake is that in exercise 8.1 and que.2 there is wrong placement of variable that is we have to find tan teeta - cot teeta ,in place of pq they written the value of pr

Posted by Aditya Sengar 7 years, 7 months ago

CBSE > Class 10 > Mathematics

0 answers

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Integers number

Posted by Harsh Singhaniaa 7 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Harsh Singhaniaa 7 years, 7 months ago

FsBBC

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What is coprime number .

Posted by Chanchal Bhardwaj 7 years, 7 months ago

CBSE > Class 10 > Mathematics

4 answers

Milind Patel 7 years, 7 months ago

The number who donot have any factor lefting 1

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Debojit Lahiri 7 years, 7 months ago

Co primes are the numvers which has only 1 as their common factor This is the perfect definition according to me

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Tarun Kumar 7 years, 7 months ago

Numbers which has their H.CF 1 like 2 and 3 and H.C.F 1 so tgey are co prime

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Rajkumar Rocky 7 years, 7 months ago

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In ex.1.1 in question 5 why we have taken 3 istead of 9......and in all the questions we have taken the digit which they have asked

Posted by Amresh Shukla 7 years, 7 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Formula chapter wise

Posted by Harendrapal Tomar 7 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Muskan Sheoran 7 years, 7 months ago

you see the formula of your reference book as well as text book

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Sanjana Yadav 7 years, 7 months ago

See in book

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Ones says give me a hundred, friend i shall them become twice rich as you the other reply if you give me ten i shall be six time as rich as you tell me what is amount of there Respected capital?

Posted by Sagar Prasad 7 years, 7 months ago

CBSE > Class 10 > Mathematics

3 answers

Debojit Lahiri 7 years, 7 months ago

Whag is this

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Arjeet Dahiya 7 years, 7 months ago

200rs and other one will be 120

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Sanjana Yadav 7 years, 7 months ago

???????

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Method of completing square

Posted by Pushpendra Pratap 7 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Pushpendra Pratap 7 years, 7 months ago

take common among all of the no. then hair the middle term then square it and in +and- then you will get a-b whole square formula then after add or subtract it

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Result kab aa rha hai cbse ka

Posted by Daksh Verma 7 years, 7 months ago

CBSE > Class 10 > Mathematics

3 answers

Priyanshu Bansal 7 years, 7 months ago

26 may

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Arjeet Dahiya 7 years, 7 months ago

May last or june first

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Sanjana Yadav 7 years, 7 months ago

Nhi malum

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Obtain all the zeroes of polynomial p(x)=3x4-15x3+17x2+5x-6 if two zeroes are -1/root 3 and 1/root3

Posted by Sachin Saini 7 years, 7 months ago

CBSE > Class 10 > Mathematics

0 answers

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The rhombus of side 20 cm has two angles of 60 each find the length of the diagonal

Posted by Siddhi Pant 7 years, 7 months ago

CBSE > Class 10 > Mathematics

0 answers

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Find the polynomial whoes are 5+√19and 5_√19

Posted by Siddharth Gautam 7 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Suriya Reddy 7 years, 7 months ago

, okkkk.. Thank u

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Find the polynomial whose zeros √3/2 & -√3/2

Posted by Siddharth Gautam 7 years, 7 months ago

CBSE > Class 10 > Mathematics

0 answers

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Show that 10 of every among 3 consecutive positive integer is divisible by 3

Posted by Sanjay Mathur 7 years, 7 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Write down prime factorisation of 3780

Posted by Yuvraj Tomar 7 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Simran Tejasvi 7 years, 7 months ago

2.2.3.3.3.5 are the factors of 3780

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Shreya Singh 7 years, 7 months ago

3780=2*2*5*3*3*3*7

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Find the quadratic polynomial whose zeros are 2/3 and -1/4 . Verify the relation between the Coefficient And the zeros of the polynomial

Posted by Jasmine Ghosh 6 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 4 months ago

The polynomial with α and β as roots is:

f(x)=x²-(α+β)x+αβ
x²-{tex}(\frac 23-\frac 14){/tex}x+{tex}(\frac 23)(-\frac 14){/tex}

{tex}\mathrm x^2-\frac5{12}\mathrm x-\frac16{/tex}

or f(x)=12x²-5x-2

here a=12,b=-5,c=-2
Sum of zeros = {tex}\frac23-\frac14=\frac5{12}=-\frac{\mathrm b}{\mathrm a}{/tex}
Product of zeros = {tex}\frac23\times-\frac14=-\frac16=\frac{-2}{12}=\frac{\mathrm c}{\mathrm a}{/tex}
Hence relation of coefficients and zeros is verified

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Find two no. Whose sum is 27 and product is 182

Posted by Deepanshu Yadav 7 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Shilpi Negi 7 years, 7 months ago

14+13=27 and 14×13=182

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How can we prove that root 2 is irrational

Posted by Renjith Royce 7 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Vansh Mann 7 years, 7 months ago

We can prove under root 2 as if we take under root 2 b and Ruby rational number show under root 2 is is equals to 2 upon b so we can

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x+y=5and2x_3y=4

Posted by Mohabbat Ali 7 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Amarkant Kumar 7 years, 7 months ago

2x+2y= 10 (by multiplying by 2 both side in eqn (1))

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Afeefa Afeefa 7 years, 7 months ago

x+y=5 ........... (i) 2x_3y=4 ........... (ii) now , We use elimination method to solve it So,multiply by 3 in eqn (i) 3x+3y=15 2x_3y=4 {adding both eqn} ............... 5x =19 x =19 5 now, Put the value of x in eqn (i) x+y=5 19+y=5 5 19+5y=25 5y=25_19 5y= 6 y= 6 5 Hence x=19 5 And y = 6 5

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D is the hcf of 210 and 55.find the value of x and y where d= 210x + 55y

Posted by Satyam Verma 7 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Vansh Mann 7 years, 7 months ago

Please open the RD Sharma of class 10th and locate the chapter number 1 the examples and the questions of the exercise that is given to us or you can also download the app or you can search on the Internet to the related topic because today Technologies so advance

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What is the sum of first 10 natural number

Posted by Nakul Sharma 7 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Suriya Reddy 7 years, 7 months ago

1+2+3+4+5+6+7+8+9+10=55 The sum of first 10 natural numbers = 55...... Hope this help u..... ???

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Abhay Singh 7 years, 7 months ago

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Find the roots of following equation 1÷x+4 _ 1÷x_7= 11÷30

Posted by Sarthak Ahuja 6 years, 4 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 4 months ago

{tex}\frac { 1 } { x + 4 } - \frac { 1 } { x - 7 } = \frac { 11 } { 30 }{/tex} where {tex}x \neq - 4,7{/tex}
{tex}\Rightarrow \frac { ( x - 7 ) - ( x + 4 ) } { ( x + 4 ) ( x - 7 ) } = \frac { 11 } { 30 }{/tex}
{tex}\Rightarrow \frac { - 11 } { ( x + 4 ) ( x - 7 ) } = \frac { 11 } { 30 }{/tex}
{tex}\Rightarrow{/tex} x²- 7x + 4x - 28 = -30
{tex}\Rightarrow{/tex} x² - 3x + 2= 0
Comparing equation x²- 3x + 2 = 0 with general form ax² + bx + c = 0,
We get a = 1, b = -3 and c = 2
Using quadratic formula {tex}x = {-b \pm \sqrt{b^2-4ac} \over 2a}{/tex}to solve equation,
{tex}x = \frac { 3 \pm \sqrt { ( - 3 ) ^ { 2 } - 4 ( 1 ) ( 2 ) } } { 2 \times 1 }{/tex}
{tex}\Rightarrow x = \frac { 3 \pm \sqrt { 1 } } { 2 }{/tex}
{tex}\Rightarrow x = \frac { 3 + \sqrt { 1 } } { 2 } , \frac { 3 - \sqrt { 1 } } { 2 }{/tex} {tex}\Rightarrow{/tex} x = 2, 1