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x/y +y/x=-1 find the value of x3-y3

Posted by Bobby Gupta 6 years, 5 months ago

CBSE > Class 09 > Mathematics

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Prove that root 2 is irrational number

Posted by Aarya Sharma 6 years, 5 months ago

CBSE > Class 09 > Mathematics

2 answers

Sreya Rajesh 6 years, 5 months ago

Root 2 cannot be write in the form p/q

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Arnav Singh 6 years, 5 months ago

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√50-√98-√162

Posted by Adarsh Jain 6 years, 5 months ago

CBSE > Class 09 > Mathematics

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What are surds

Posted by Harshith K V 6 years, 5 months ago

CBSE > Class 09 > Mathematics

2 answers

45516111? 46 6 years, 5 months ago

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Adarsh Jain 6 years, 5 months ago

Surds are nothing ?

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Using suitable identity, find value of 73^3+27^3/73^3-73*27+27^3

Posted by Parneet Kaur 6 years, 5 months ago

CBSE > Class 09 > Mathematics

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write the following in expanded form (1/x+y/3)³

Posted by Priya Kalra 6 years, 5 months ago

CBSE > Class 09 > Mathematics

0 answers

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Which side does 1+root2 lie on number line

Posted by Hari Kumar 6 years, 5 months ago

CBSE > Class 09 > Mathematics

0 answers

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Math activity Lab manual

Posted by Shivani Bhati 6 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

Shivani Bhati 6 years, 5 months ago

I can't do it

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Draw a quadrilateral with vertex (-4,4) (-6,0) (-4,-4) (-2,0) name the type of quadrilateral and find its area.

Posted by Arshdeep Virk 6 years, 5 months ago

CBSE > Class 09 > Mathematics

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If y3 +ay2 by +6 is divisible by y_2 and leaves the remainder 3 when divided by y_3 find the value of a and b

Posted by Shagandeep Singh 6 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 6 years, 5 months ago

Let {tex}p\left( y \right){\text{ }} = {\text{ }}{y^3} + {\text{ }}a{y^2} + {\text{ }}by{\text{ }} + {\text{ }}6{/tex}
p(y) is divisible by y – 2
Then P (2) = 0
{tex}{2^3} + a \times {2^2} + b \times 2 + 6 = 0{/tex}
{tex}8 + 4a + 2b + 6 = 0{/tex}
{tex}{\text{4a + 2b = }} - {\text{14}}{/tex}
{tex}{\text{2a + b = }} - {\text{7 (i)}}{/tex}
If p (y) is divided by y-3 remainder is 3
{tex}\therefore {\text{ p (3) = 3}}{/tex}
{tex}{{\text{3}}^3} + a \times {3^2} + b \times 3 + 6 = 3{/tex}
9a+3b=-30
3a+b=-10 ---(ii)
Subtracting (i) from (ii)
-a = 3 and a = -3
Put a = -3 in eq (i)
{tex}2 \times - 3{\text{ }} + {\text{ }}b{\text{ }} = {\text{ }} - 7{/tex}
-6+b=-7
b=-7+6
b=-1

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Find three rational numbers between -2 and 5.

Posted by Karan Sinha 6 years, 5 months ago

CBSE > Class 09 > Mathematics

2 answers

Abhijeet Singh 6 years, 5 months ago

The three rational number are -1;0and1

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Hariom Dalal 6 years, 5 months ago

-1,0,1 are the 3rational number between -2 and 5

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If a+b=3 and a square + b square is equals to 40 find a cube plus b cube

Posted by Jyoti Khandelwal 6 years, 5 months ago

CBSE > Class 09 > Mathematics

2 answers

Jyoti Khandelwal 6 years, 5 months ago

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Jyoti Khandelwal 6 years, 5 months ago

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Resolve into factors 36x²-81y²

Posted by Pankhudi Rathod 6 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

Sumit Yadav 6 years, 5 months ago

Make a file on disease caused by at least four disease

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3√2-6×8-2√7

Posted by Mahadev Thakur 6 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

??Sumit Suman?? 6 years, 5 months ago

3√2-48-2√7

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3√2-6 8-2√7

Posted by Mahadev Thakur 6 years, 5 months ago

CBSE > Class 09 > Mathematics

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Find a number which is divided into three parts and four times and remaining 1 each time.

Posted by Aman Kumar 6 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

Aman Kumar 6 years, 5 months ago

Answer

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5 square minus 6 square

Posted by Hutasan Majhi 6 years, 5 months ago

CBSE > Class 09 > Mathematics

3 answers

Ashwini Kajava 6 years, 5 months ago

-11

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??Sumit Suman?? 6 years, 5 months ago

-11

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Asha Jha 6 years, 5 months ago

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Find the reminder theorm when x³+3x²+3x+1is divided by x

Posted by Pankhudi Rathod 6 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

Sreya Rajesh 6 years, 5 months ago

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Find the value of the polynomial 7y - y²+5at y=-1

Posted by Pankhudi Rathod 6 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

Abhijeet Singh 6 years, 5 months ago

7(-1)--(-1)"2+5 -7--1+5 -3 Hence, the ans is -3

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The expanded form of( 3x-2) ³is 27x³-8-54x²+36x.justify

Posted by Pankhudi Rathod 6 years, 5 months ago

CBSE > Class 09 > Mathematics

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How to find irrational numbers between two rational numbers?

Posted by Isha Bharadwaj 6 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

45516111? 46 6 years, 5 months ago

By dividing

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59/2

Posted by Dhanush S 6 years, 5 months ago

CBSE > Class 09 > Mathematics

2 answers

??Sumit Suman?? 6 years, 5 months ago

29.5

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45516111? 46 6 years, 5 months ago

29.5

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(x+1)(x+2)

Posted by Smile Kumar 6 years, 5 months ago

CBSE > Class 09 > Mathematics

3 answers

45516111? 46 6 years, 5 months ago

Identity

1Thank You

Prince Kumar 6 years, 5 months ago

Question :- (x+1) (x+2) We know that from identity (x+a) (x+b) = x^2+(a+b)x+ab = x^2 +(1+2)x+1×2 = x^2+3x+2

2Thank You

Smile Kumar 6 years, 5 months ago

(3xzsquare+x)(4x+1)

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The square of an irrational number is always rational [say where it is true or false ]

Posted by Tiya 1317 Champaneri 6 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

45516111? 46 6 years, 5 months ago

False

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103×107=(100+3)(100+7 =(100)Square+(3+7)×100+3×7 [Using the identity (x+a)(x+b)=x Square+(a+b)x+ab] =10000+10×100+21=10000+1000+ 21 =11021 95×96=(90+5)(90+6) =(90)Square+(5+6)×90+5×6 =8100+990+30 =9120

Posted by Rishabh Raoso Pawar 6 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

45516111? 46 6 years, 5 months ago

✓

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Root 7 on number line root 7 on number line

Posted by Jatin Kohli 6 years, 5 months ago

CBSE > Class 09 > Mathematics

3 answers

Priya Roy 6 years, 5 months ago

Now make √3 on number line first then take it this √3 as base and 2 cm as perpendicular and join the hypotenuse with centre.take this hypotenuse as arc and cut on number line this intersection point shows √7 on number line.

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Priya Roy 6 years, 5 months ago

Which is under root (2)^2+(√3)^2

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Priya Roy 6 years, 5 months ago

First of all make. Sum of squares of factors of 7

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B2/under root a2+b2+a

Posted by Akhtar Khan 6 years, 5 months ago

CBSE > Class 09 > Mathematics