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If x=2^1/3 + 2^2/3 show that x^3-6x=6

Posted by Titi Karmi 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 4 years, 4 months ago

x = {tex}2^{1 / 3}+2^{2 / 3}{/tex}
x³ = {tex}\left(2^{1 / 3}+2^{2 / 3}\right)^{3}{/tex}
{tex}\Rightarrow{/tex} x³ = {tex}\left(2^{1 / 3}\right)^{3}{/tex} + {tex}\left(2^{2 / 3}\right)^{3}{/tex} + 3 {tex}\times{/tex} {tex}2^{1 / 3}{/tex} {tex}\times{/tex} {tex}2^{2 / 3}{/tex}{tex}\left(2^{1 / 3}+2^{2 / 3}\right){/tex}
{tex}\Rightarrow{/tex} x³ = 2 + 2² + 3 {tex}\times{/tex} 2{tex}\left(2^{1 / 3}+2^{2 / 3}\right.){/tex}
{tex}\Rightarrow{/tex} x³ = 6 + 6{tex}\left(2^{1 / 3}+2^{2 / 3}\right.){/tex}
{tex}\Rightarrow{/tex} x³ = 6 + 6x
{tex}\Rightarrow{/tex} x³ - 6x = 6

ANSWER

If 4 is the means of the observation x1,X2,x3.............X10 then the value of 10Sigma angle 1 (x-4) is equal to

Posted by Anamika Kumari Meena 4 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

What is the measure of straight angle?

Posted by Sunil Rathi 4 years, 4 months ago

CBSE > Class 09 > Mathematics

5 answers

Shreya Jaiswal 4 years, 4 months ago

180

I͓̽T͓̽S͓̽ M͓̽E͓̽ 4 years, 4 months ago

180 degrees

Nikhil Reddy 4 years, 4 months ago

180

Kunal Tiwari 4 years, 4 months ago

The measure of straight angle is always 180 degree

Anjum Munir 4 years, 4 months ago

180 degree

ANSWER

In this figure PQ and RS intersect each other at point 0.if x:y =5:7, find x, y, z and w

Posted by Tanu Baghel 4 years, 4 months ago

CBSE > Class 09 > Mathematics

2 answers

Kunal Tiwari 4 years, 4 months ago

5x + 7x = 180

Preet Chechani 4 years, 4 months ago

Pata nahi ha

ANSWER

2x=36

Posted by Anita Pujar 4 years, 4 months ago

CBSE > Class 09 > Mathematics

5 answers

Sunil Rathi 4 years, 4 months ago

2x=36 Ans- x =36÷2=18 x = 18.

Preet Chechani 4 years, 4 months ago

X=18

Kamal Kumar 4 years, 4 months ago

X=18

Ravi Shankar 4 years, 4 months ago

a2+2a+2x(2÷4)

Chaithanya Kumar 8Th Class 4 years, 4 months ago

x = 18

ANSWER

A field is in the shape of a Trapezium whose parallel sides are 25m and 10m the non parallel sides are 14 and 13 find the area of the field

Posted by Nira Verma 4 years, 4 months ago

CBSE > Class 09 > Mathematics

3 answers

Vinay Dhanuka 4 years, 4 months ago

196 m s^2

Shreya Chawla 4 years, 4 months ago

Given: AB || CD AB = 25m CD = 10m BC = 14m AD = 13m From point C draw CE || DA. Hence ADCE is a llgrm having CD II AE & ADIICE AE= CD= 10m CE= AD = 13m BE= AB- AE =25-10-15 m BE= 15m In ABCE BC= 14m, CE= 13m, BE = 15rr Semiperimeter (s) = (a + b + c) / 2 Semiperimeter * (s) = (14 + 13 + 15) / 2 s= 42/2= 21m s = 21m Area of ABCE=√ s(s-a)(s-b)(s-c) Area of ABCE=√ 21(21-14)(21-13)(21-15) Area of ABCE=√ 21x7x 8×6 Area of ABCE= √ 7×3× 7×2 4×2×2×3 Area of ABCE=√7×7×3×3×2×2×4 Area of ABCE= 7×3×2×2= 21x 4= 84m² Area of ABCE= 84m² Area of ABCE=√ 7×3× 7× 4×2×2×3 Area of ABCE=√7x7×3×3×2×2×4 Area of ABCE= 7×3×2×2= 21x 4= 84m² Area of BCE = 84m ^ 2 Area of Delta*B * C * E = 1/2 * b * a × altitude Area of Delta*B * C * E = 1/2 * B * E * C * L 84 = 1/2 * 15 * C * l 84 * 2 = 15CL 168 = 15CL CL = 168/15 CL = 56/5 * m Height of trapezium= 56/ 5m Area of trapezium= 1/2( sum of Il sides) (height) Area of trapezium=1/2(25+10)(56/5) Area of trapezium= 1/2(35)(56/5) Area of trapezium= 7x28=196m² Hence the area of field is 196m²

Jiya Kumari 4 years, 4 months ago

Area of the field is 196m^2

ANSWER

A rhombus shaped field has green grass for 18 cows to graze if each side of the Rhombus is 30 and its longer diagonal is 48 how much area of grass field will eat cow be getting

Posted by Nira Verma 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Shreya Chawla 4 years, 4 months ago

We will divide the given rhombus into two triangles, and by using Heron’s formula, we can calculate the area of triangles. Heron formula for the area of a triangle = √s(s - a)(s - b)(s - c) Where a, b and c are the sides of the triangle, and s = Semi-perimeter = Half the Perimeter of the triangle = (a + b + c)/2 A rhombus shaped field has green grass for 18 cows to graze. If each side of the rhombus is 30 m and its longer diagonal is 48 m, how much area of grass field will each cow be getting Let the longer diagonal AC divides the rhombus ABCD into two congruent triangles. For ∆ABC, a = b = 30 m, c = 48 m And Semi Perimeter(s) = (a + b + c)/2 s = (30 + 30 + 48)/2 s = 108/2 s = 54 m By using Heron’s formula, Area of ΔABC = √s(s - a)(s - b)(s - c) = √54(54 - 30)(54 - 30)(54 - 48) = √54 × 24 × 24 × 6 Area of ΔABC = 432 m2 Area of rhombus = 2 × Area of a ΔABC = 2 × 432 m2 = 864 m2 Since, number of cows = 18 The area of grass field will each cow get = (Total area of the rhombus) / 18 = 864 m2/18 = 48 m2 Thus, each cow will be getting a 48 m2 area of the grass field.

ANSWER

Findthe area of rectangle ABCD in cordinate geometry

Posted by Pavni Chhabra 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Ayush Kumar 4 years, 4 months ago

L x b

ANSWER

If the point (5,3) lies on the graph of equation 6y=ax + 3 then find the value of a

Posted by Tanish Rawal 4 years, 4 months ago

CBSE > Class 09 > Mathematics

3 answers

Kamal Kumar 4 years, 4 months ago

A=3

Ayush Kumar 4 years, 4 months ago

5

Trisha Kashyap 4 years, 4 months ago

x=5 and y=3 => 6 x 3 =a x 5 + 3 => 18=5a+3 => 5a =18 - 3 => 5a =15 .•. a = 3

ANSWER

If access and why our lady appear and toys of X is 30 less than Y then find the value of x and y

Posted by Ashok Upadhyay 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Ashwani Kumar 4 years, 4 months ago

Can you type the question right (again).

ANSWER

If triangle ABC is similar to triangle DEF such that 3AB=DE and BC=9cm than EF is equal to

Posted by Avantika Shrivastava 4 years, 4 months ago

CBSE > Class 09 > Mathematics

2 answers

Chaithanya Kumar 8Th Class 4 years, 4 months ago

27

Neha Kanchan 4 years, 4 months ago

EF=BC=9cm

ANSWER

Anyone have CBSE class 9 old questions paper

Posted by Virendra Patil 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Annabelle ✨ 4 years, 4 months ago

Yes I've of term I and of my school

ANSWER

part 2 13.1

Posted by Khalid Shaik Khalid 4 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

(√6-√5) (√3+√2)

Posted by Jinali Jain 4 years, 4 months ago

CBSE > Class 09 > Mathematics

3 answers

Ananya Mishra 4 years, 3 months ago

√5

Brahmchari Yadav 4 years, 4 months ago

(/6-/)(/3+/2(

Abhishek Mishra 4 years, 4 months ago

√5

ANSWER

Vast app because some question automatically answer change of test mcq

Posted by Shourya Mishra 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Shivam Kumar Prajapati 4 years, 4 months ago

Sk g

ANSWER

Thank you for this wonderful app ❤️ I haven't seen this type of app ❤️? I love this app ❤️❤️? nice app for all subjects but computer is not their

Posted by Manthan Raut 4 years, 4 months ago

CBSE > Class 09 > Mathematics

2 answers

Neil :) 4 years, 4 months ago

Information technology is there I guess I have also taken IT❤️

Neil :) 4 years, 4 months ago

Yes , wonderful platform❤️❤️

ANSWER

IN A TRAINGLE ABC ,IF ∠A+ ∠B = 50 & ∠B - ∠C = 40, THEN ∠B = _____

Posted by Madhura Kori 4 years, 4 months ago

CBSE > Class 09 > Mathematics

4 answers

Prince Mishra 4 years, 4 months ago

90

Sonu Kumari 4 years, 4 months ago

90

Soncy Sharma 4 years, 4 months ago

90

Anil Tikyani 4 years, 4 months ago

90

ANSWER

On simplifying 4 root 3root 3 square

Posted by Kim Nelina 4 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

if x-1/x=2/3 then find the value of x⁴-1/x⁴

Posted by Oorja Jain 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Chaithanya Kumar 8Th Class 4 years, 4 months ago

80/81

ANSWER

The graph of which of the following equation does not pass through the origin?

Posted by Anjum Munir 4 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

write the p/q form of 0.01

Posted by Moksha Shetty 4 years, 4 months ago

CBSE > Class 09 > Mathematics

5 answers

Monica ✨☄️ 4 years, 4 months ago

1 100-¹?

Piyush Raj 4 years, 4 months ago

1/100

Ansh Kumar 4 years, 4 months ago

1/10

Divyanshi Prajapati 4 years, 4 months ago

1 100

Divyanshi Prajapati 4 years, 4 months ago

1 10

ANSWER

the length of the three sides of a triangular field are 40 m 24 mand 32m respectively the area of the triangle is

Posted by Samira Ali 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Pratik Kumar 4 years, 4 months ago

576sq.m

ANSWER

Check whether the equation (x-5)x+6y-y2=0 is an equation of the form ax+by+c=0 or not.

Posted by ●⃝Bʜᴀsᴋᴀʀ ⚡ 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Chaithanya Kumar 8Th Class 4 years, 4 months ago

No

ANSWER

The rational number between 1/7 and 2/7

Posted by Adarsh M Patil Patil 4 years, 4 months ago

CBSE > Class 09 > Mathematics

3 answers

Anil Tikyani 4 years, 4 months ago

3/14

Mahesh Kumar 4 years, 4 months ago

3/14

Saniya Garg 4 years, 4 months ago

3/14

ANSWER

Write each of the following as an equation in two variables x and y A) x= -3

Posted by Saanvi Singh 4 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Between two rational number

Posted by Nitin Sharma 4 years, 4 months ago

CBSE > Class 09 > Mathematics

2 answers

Nitin Sharma 4 years, 4 months ago

Answer please

Nitin Sharma 4 years, 4 months ago

C

ANSWER

The product of two irrational number is ?

Posted by Angel Massey 4 years, 4 months ago

CBSE > Class 09 > Mathematics

3 answers

Shrusti Shrusti 4 years, 4 months ago

Irrational

Vishwajeth Vishwajeth 4 years, 4 months ago

F

Pavan K 4 years, 4 months ago

The product of two irrational numbers can be rational or irrational depending on the two numbers. For example, √3×√3 is 3 which is a rational number whereas √2×√4 is √8 which is an irrational number. As √3,√2,√4 are irrational

ANSWER

Prove that the internal and external bisector of an angle of a triangle are at right angles

Posted by Yaman Yadav 4 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

(2+4×6÷8+0×98+2334×34455)×0

Posted by Kishore ✌️ 4 years, 4 months ago

CBSE > Class 09 > Mathematics

5 answers

Mahesh Kumar 4 years, 4 months ago

0

Tanishka Chauhan Chauhan 4 years, 4 months ago

My answer is 2

Komal Bhandari 4 years, 4 months ago

i think 0

Mahak Saini 4 years, 4 months ago

Answer is 0

Neil :) 4 years, 4 months ago

Use calculator??

ANSWER

In equation, y = mx+c, m is: a) Intercept b) Slope of the line c) Solution of the equation d) None of the above

Posted by Harshith Hg Harshith Hg 4 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

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