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Express 0.2545454..... As fraction in simplest form.

Posted by Vgangadharnaik Gangadhar 7 years, 6 months ago

3 answers

Lipsa Rani 7 years, 6 months ago

It can be written in fraction. _ 0.2545454.......=0.254. _ Let x = 0.254, _ 10x =2.54, _ 1000x=254.54, _ _ 1000x -10x=254.54 -2.54, 990x=252, X=252÷990=14÷55.

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Farneet Singh 7 years, 6 months ago

Its an irrational number

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Farneet Singh 7 years, 6 months ago

Its a irrational number

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If the sum of squares of the zeroes of polynomial 6x2+x+k is 25/36. Find the value of k ?

Posted by Vgangadharnaik Gangadhar 7 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Can (x-7) be the remainder on division of polynomial p(x) by (7x+2)?justify your answer

Posted by Vgangadharnaik Gangadhar 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Rahul Purve 7 years, 6 months ago

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If alpha and beta are the zeroes of polynmial x^2-5x+k such that alpha-beta=1,then find k

Posted by Sajitha Sajitha 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Kartik Gupta 7 years, 6 months ago

K is 5

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by using the method of completing the square show that the 4x^2+3x+5=0 has no real roots

Posted by Srishti Pandey 6 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 6 months ago

We have,
4x² + 3x + 5 = 0
Divide whole equation by 4
{tex} \Rightarrow \quad x ^ { 2 } + \frac { 3 } { 4 } x + \frac { 5 } { 4 } = 0{/tex}
{tex}\Rightarrow \quad x ^ { 2 } + 2 \left( \frac { 3 } { 8 } x \right) = - \frac { 5 } { 4 }{/tex}
Add ( half of coefficient of x )² both sides
{tex}\Rightarrow \quad x ^ { 2 } + 2 \left( \frac { 3 } { 8 } \right) x + \left( \frac { 3 } { 8 } \right) ^ { 2 } = \left( \frac { 3 } { 8 } \right) ^ { 2 } - \frac { 5 } { 4 }{/tex}
{tex}\Rightarrow \quad \left( x + \frac { 3 } { 8 } \right) ^ { 2 } = - \frac { 71 } { 64 }{/tex}
{tex}\left( x + \frac { 3 } { 8 } \right) ^ { 2 }{/tex} cannot be negative for any real value of x. Hence, the given equation has no real roots.

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Tan-¹(1+cosx/sinx) with respect to x

Posted by Gaurav Rawat 7 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

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On dividing polynomial 2x cube+ 4x square +5x +7 by g(x) the q( x) were 2x and7-5x find g(x)

Posted by Madhu Varshini 7 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

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Four add four

Posted by Priyank Raj 7 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Aabith $ 7 years, 6 months ago

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Pavi S 7 years, 6 months ago

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Prove that : ((Root3+1)to the power 2x)+ ((root3-1)to the power 2x)=2to the power 3x

Posted by Sairaj Panigrahi 7 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

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Find the zeroes of the polynomial 2xsquare-9

Posted by Abhishek Singh 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

S Arish 7 years, 6 months ago

2x^2-9 2x^2=9 2x=√9 2x=+3or-3 X=3/2andx=-3/2

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Which is the smallest composite number

Posted by Spoorthi Spoo 7 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Bhanu Pratap Soni 7 years, 6 months ago

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Pavi S 7 years, 6 months ago

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Prove Euclids division lemma

Posted by Ritesh Barnwal 7 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

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If under root 7 minus under root 7are zeroes of 2 x power 4 + 3 x power 3 minus 16 x 42 - 21 X + 14 otherboth zeroes

Posted by Ankit Yadav 7 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

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ax+by=a-b bx-ay=a+b

Posted by Themadhura The 6 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 6 months ago

ax + by = a - b multiply by a
bx - ay = a + b multiply by b

{tex}\Rightarrow{/tex} x = 1
{tex}\therefore{/tex} a + by = a - b
by = -b
y = -1
{tex}\therefore{/tex} x = 1
y = -1

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In an ap the sum first 11 term is 44 and next of 11bterm is 55 find ap

Posted by Priya Priya 7 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

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What do you mean by trigonmetri ratios

Posted by Soni Kuniyal 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Tarunjeet Singh Bedi 7 years, 6 months ago

Trigonometry ratios are of six types sin,cos,tan,cosine,sec,cot. These are the angle created or the form of waves generated on xy curve

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A shopkeeper has 2737 carrots of eggs if in 1 carat 55 eggs can be put. find the number of eggs in the shop

Posted by Baban Aujla 7 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Find the zeroes of the polynomial x^3-13x^2+52x-60

Posted by Ananya Patni 7 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

find a quadratic polynomial whose zeroes are -3and 4

Posted by Komal Ingle 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Nitya Singhal 7 years, 6 months ago

Zeroes are -3 & 4 Factors are x+3 & x-4 (x+3)(x-4)= p(x) x^2-4x+3x-12=p(x) x^2-x-12=p(x) The required polynomial is x^2-x-12

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Prove that (a+b)2 = a2 +b2 +2ab

Posted by Kushal Choudhary 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Nitya Singhal 7 years, 6 months ago

(a+b)^2= (a+b)(a+b) =a^2 + ab+ ab+ b^2 =a^2+ 2ab+ b^2

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Proof of trignometry...

Posted by Kanish Fagetra 7 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

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In the circuit diagram given below the cirrent flowing across 5 ohms resistor is 1amp.find the current flowing through the other two resistor

Posted by Sakshi Soni 5 years, 8 months ago

CBSE > Class 10 > Mathematics

1 answers

..... ...... 7 years, 6 months ago

Where is the diagram?

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Difference between watt and volt

Posted by Harsh Rathore 7 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Priyanka Chaurasiya 7 years, 6 months ago

Watt is the si unit of power and volt is the si unit of potential difference.

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Shreya Gupta 7 years, 6 months ago

Watt is unit of power .it is rate of consuming energy by an appliance .whereas volt is unit of potential potential difference. We get p.d. from battery.

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(tan65°)÷(cot25°)

Posted by Kuldeep Solanki 7 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Abhi Rawat 7 years, 6 months ago

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Happy Kumar 7 years, 6 months ago

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If one zero of the quardic polynomial 2xsquare-(3k+1)x-9 is negative of the other find the value of k

Posted by Harsh Chauhan 7 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Is there exercises of chapters

Posted by Adnan Shaikh 7 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

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if one of the zeroes of the cubic polynomial x^3+ax^2+bx+c is -1, then find the product of the other two zeroes

Posted by Jahnavi Arora 6 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Sia ? 6 years, 6 months ago

Let p(x) = x³ + ax² + bx + c
As -1 is one of the zeroes of p(x), p(-1) = 0
⇒ (-1)³ + a(-1)² + b(-1) + c = 0
⇒ - 1 + a – b + c = 0
⇒ c = b –a + 1 …. (i)
Let {tex}\alpha{/tex}, β be two other zeroes of p(x),
then product of zeroes =-1× {tex}\alpha{/tex} × β ={tex}\;\;-\frac{\;\;Cons\tan t\;term\;}{coefficient\;of\;x^3}{/tex}
⇒ (-1) (α β) = {tex}\;\;-\frac{\;\;c}1{/tex}
⇒ - {tex}\alpha{/tex} β = - c
⇒ {tex}\alpha{/tex} β = c
⇒ {tex}\alpha{/tex} β = b –a + 1 [using (i)]