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(a-2b-3c)2expand

Posted by C Anil Kumar 3 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 3 years, 2 months ago

(a−2b−3c)²
According to the equation ,
(a+b+c)²= a²+ b²+ c²+ 2ab + 2bc + 2ca
So we get,
Using the formula we can it write it as
(a−2b−3c)²= a²+(−2b)²+(−3c)²+2a(−2b)+(2(−2b)(−3c)+2(−3c)a
On further calculation we get,
(a−2b−3c)²= a²+ 4b²+ 9c²− 4ab + 12bc − 6ac

ANSWER

Expand 100a^2-b^2c^2

Posted by C Anil Kumar 3 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

X⁴-x⅝+x²

Posted by Dharu Prakash K 3 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Yashika Khantwal 3 years, 2 months ago

Equation is incomplete pls check

ANSWER

X⁴-x⅝+x²

Posted by Dharu Prakash K 3 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Log(1+1/3+log(1+1/4)+__

Posted by Jithesh G 3 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

The point of intersection of the lines representing the equations 3x=2y+1and 2x=3y-1 is ;

Posted by V Ss 3 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

In R.S. Agrawal Book's page no 227 Que:20 - In the given figure,AB||ED and BC||EF. Show that angle ABC= angle DEF.

Posted by Bhoomi Dubey 3 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 3 years, 2 months ago

Given BA || ED and BC || EF.
To show {tex}\angle{/tex}ABC = {tex}\angle{/tex}DEF.
Construction Draw a ray EP opposite to ray ED.

Proof In the figure, BA || ED or BA || DP
{tex}\therefore{/tex} {tex}\angle{/tex}ABP = {tex}\angle{/tex}EPC [corresponding angles]
{tex}\Rightarrow{/tex} {tex}\angle{/tex}ABC = {tex}\angle{/tex}EPC ....(i)
Again, BC || EF or PC || EF
{tex}\therefore{/tex} {tex}\angle{/tex}DEF = {tex}\angle{/tex}EPC [corresponding angles] ....(ii)
From eqs.(i) and (ii),
{tex}\angle{/tex}ABC = {tex}\angle{/tex}DEF

ANSWER

X-1

Posted by Arman Sheikh 3 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Pratham Patel 3 years, 2 months ago

X-1 = X-1

Arman Sheikh 3 years, 2 months ago

VabHa

ANSWER

Factorise: 9x²+6xy+y²

Posted by Prem Modi 3 years, 2 months ago

CBSE > Class 09 > Mathematics

4 answers

Sia ? 3 years, 2 months ago

(3X + Y)²

Tanu Shri Saini 3 years, 2 months ago

Using identity - x²+2xy+y²=(x+y)² =So, 9x²+6xy+y² =(3x)²+2(3x)(y)+(y)² =(3x+y)²

Tanu Shri Saini 3 years, 2 months ago

Using identity - x²+2xy+y²=(x+y)² 9x²+6xy+y² (3x)²+2(3x)(y)+(y)² (3x+y)² (3x+y) (3x+y)

Pratham Patel 3 years, 2 months ago

(3X+Y)^2

ANSWER

Give the geomatric representations of y=3 as an equation I) in one variable

Posted by Amaresh Ambresh 3 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Bhoomi Dubey 3 years, 2 months ago

In one variable,there is only y axis(no X axis) . Here y=3 in one variable

ANSWER

Can we write 0 in the form p/q

Posted by Ansh Tiwari 3 years, 2 months ago

CBSE > Class 09 > Mathematics

5 answers

Harshvivek Lakhera 3 years, 2 months ago

Yes we can write 0 in a form of p/q.

Mithun P 3 years, 2 months ago

Zero can be represented as p/q in the form of 0/1, 0/2, 0/3, 0/4… And so on. Since the number zero divided by any number is equal to zero.

Mithun P 3 years, 2 months ago

Yes ,we can write 0/1 ,0/2 ....

Yashika Khantwal 3 years, 2 months ago

Rational number have 2 terms 1. P/q should be integer 2. Q not be 0 at any case ... Clearly p/q and every rational number not be 0 at any case

Yashika Khantwal 3 years, 2 months ago

No

ANSWER

Simplify (11)1/2/(11)1/4

Posted by Shreya Ghosh 3 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Harshvivek Lakhera 3 years, 2 months ago

Ans-law if exponent shows that M1/2/m1/4=M1/2-1/4. So, 111/2-1/4 1/4 11 is a answer

Yashika Khantwal 3 years, 2 months ago

Ans: Law =a^m /a^n = a^m-n 11^(1/2-1/4) = 11 ^(2-1/4) = 11^(1/4)

ANSWER

(16)1/2x(27)1/3

Posted by Diya Jith 3 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Bhoomi Dubey 3 years, 2 months ago

72

ANSWER

?Divide the polynomial x³+4x²-3x+10 by (x+4).

Posted by Monica ✨☄️ 3 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

how Square root represent on number lin

Posted by Shubh Mishra 3 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Siddappa Baraddi 3 years, 2 months ago

Pytogorus

Sunny Balhara 3 years, 2 months ago

Zs

ANSWER

4 to the power x+1 = 69 . Simplify

Posted by Shashwat Meher 3 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Saloni P 3 years, 2 months ago

निम्नलिखित संख्याओं को अभाज्य गुणनखंडो के गुणनफल के रूप में धर्म-कर्म कीजिए ‌1.140 2.156 3.3825 4.5005 5.7429

ANSWER

Find the value of p(x) =x^-- 5x+4 at x=-1

Posted by Tiksha Sharma 3 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Tiksha Sharma 3 years, 2 months ago

Answer

ANSWER

4+3√5/4-3√5=a+b√5

Posted by Jj Nn 3 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Find one solution of x=3y+2

Posted by Vijay Singh 3 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Rhythm Sadyan 3 years, 2 months ago

X=2/y=3

ANSWER

7x 3 +8y 3 −(4x+3y)(16x 2 −12xy+9y 2 )

Posted by Joshi Tha 3 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Manyata Chaurasia 3 years, 2 months ago

9g

ANSWER

Ex 1.1

Posted by Yugal Kishore Meena 3 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Solve the following:7x³+8y³-(4x+3y)(16x²-12xy+9y²)

Posted by Yashodhan Chaturvedi 3 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Joshi Tha 3 years, 2 months ago

Answer 7x 3 +8y 3 −(4x+3y)(16x 2 −12xy+9y 2 ) =7x 3 +8y 3 −(4x+3y)[(4x) 2 −4x×3y+(3y) 2 ] =7x 3 +8y 3 −(64x 3 +27y 3 ) =−57x 3 −19y 3

Joshi Tha 3 years, 2 months ago

K

ANSWER

√9/√27

Posted by Alexa (◕ᴗ◕✿) 3 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Joshi Tha 3 years, 2 months ago

Step-by-step explanation: \begin{gathered}Given \: \frac{\sqrt{9}}{27}\\=\frac{\sqrt{3^{2}}}{27}\\=\frac{3}{27}\\=\frac{3}{3\times 9}\\=\frac{1}{9}\\=Rational \:number\end{gathered} Given 27 9 = 27 3 2 = 27 3 = 3×9 3 = 9 1 =Rationalnumber

ANSWER

Find the value of 5,6,7,x, x+2, 8,9,10,if the median is 10.

Posted by Kshiti Rana 3 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Vishesh Mishra 3 years, 2 months ago

L

ANSWER

Draw a triangle ABC where vertices and c are (0,3),(3,-3) and (-3,0) respectively

Posted by P Hari Prasad 3 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Write the integral zeroes of the following polynomials (x-3)(x-7)

Posted by Rajaguru V 3 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Rajaguru V 3 years, 2 months ago

3 ,7

ANSWER

Simplify 4+√5/4+√5 + 4+√5/4+√5

Posted by Muskan Yadav 3 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Yashveer Choudhary 3 years, 2 months ago

6

ANSWER

meet.google.com/mgh-wqxs-yxz

Posted by Prathamesh Kharade 3 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

3 + root 3 + 2 root 3 minus

Posted by Laxmipriya Mohanta 3 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Bhakti Darekar 3 years, 2 months ago

Rroot 6

ANSWER

√6×√27 =

Posted by Neha Roshini 3 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Joshi Tha 3 years, 2 months ago

√6 × √27 The given problem can be solved by expressing each term into individual roots and multiplying √6 can be expressed as √2 × √3 √27 can be expressed as √3 × √3 × √3 = √2 × √3 × √3 × √3 × √3 = 3 × 3√2 = 9√2 Answer √6 × √27=9√2

ANSWER

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