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Find the zeros g(x)=a(x2+1) -x( a2+1)

Posted by Vishakha ???????? 6 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

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Can we prove root 3 + root 5 as irrational number by proving both root3 and root 5 separately irrational number?

Posted by Rohan Patel 6 years, 3 months ago

CBSE > Class 10 > Mathematics

2 answers

Tanu Meena 6 years, 3 months ago

No prove root 3 as irrational then write similarly to prove root 5 as irrational no need to prove it separately

1Thank You

Sourav Sharma 6 years, 3 months ago

Let √3 is a rational number so we can write in the form of p/q where q is not equal to 0 and p and q are composite number so , √3=p/q S B S (√3)²=(p/q)² 3=p²/q² 3q²=p² P²is divisible by 3 •.•p is disible by 3 P=3m S B S p²=(3m)² P²=9m² (p² =3q²) 3q²=9m² q²=3m² Q²is divisible by 3 •.•q is divisible by 3 Hence our contradiction is wrong therefore √3 is a irrational number Similarly we will prove √5 is irrational number We will add both equation And when we add two irrational number it give irrational no not rational number Hence √3+√5 is irrational number

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Question paper of class 10 of periodic 2 oflast year

Posted by Tanisha Varghese 6 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

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If side of equilateral triangle is 3 what will be its altitude?

Posted by Rohan Patel 6 years, 3 months ago

CBSE > Class 10 > Mathematics

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5 root 5 x square + 30 X + 51 find zeros by completing square method

Posted by Sima Devi 6 years, 3 months ago

CBSE > Class 10 > Mathematics

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-37,-33,-29 ap

Posted by Rohit Kumar 6 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

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Cshhjvd

Posted by Ajay Mundada 6 years, 3 months ago

CBSE > Class 10 > Mathematics

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If the numbers x-2, 4x-1, and 5x+2,are in A.P. find the value of x

Posted by Yash Kohli 6 years, 3 months ago

CBSE > Class 10 > Mathematics

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If m times the Mm term of an AP is equal to n times its Nm term, show that (m +n)th term of the AP is zero

Posted by Ravindra Sanap 6 years, 3 months ago

CBSE > Class 10 > Mathematics

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A Passenger train take 2 hour less for a journey of 300 kilometre if its speed is increased by 5 km per hour from its usual speed. find it usual speed

Posted by Prince Raj Prajapati 6 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

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2÷35-5×7+9=?

Posted by Pooja Kumari 6 years, 3 months ago

CBSE > Class 10 > Mathematics

2 answers

Raman Tripathi 6 years, 3 months ago

-25.6

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⛩️Singh Empire? (Believe In Study) 6 years, 3 months ago

First divide then multiply then add and then subtract

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What is the definition of zero

Posted by Veer Singh 6 years, 3 months ago

CBSE > Class 10 > Mathematics

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Has no zero means in ap

Posted by Shubhangi Wajge 6 years, 3 months ago

CBSE > Class 10 > Mathematics

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Find two consecutive positive integers ,sum of whose square is 365

Posted by Leeza Khan 6 years, 3 months ago

CBSE > Class 10 > Mathematics

2 answers

Silent Girl Happy 6 years, 3 months ago

Let us two positive integer be x and x+1 A.T.Q x^2+(x+1)^2=365 x^2+x^2+2x +1=365 2x^2+2x-364=0 x^2+x-182=0 Let us split middle term X^2+14x-13x-182=0 X(x+14)-13 (x+14)=0 (X+14)(X-13)=0 X =-14 or X=13 Negative root being rejected Hence required number are 13 and 14

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Silent Girl Happy 6 years, 3 months ago

13 and 14

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In an AP the sum of first n term is 3n/2+5n/2 find its 25th term

Posted by Mansi Maurya 6 years, 3 months ago

CBSE > Class 10 > Mathematics

2 answers

B.M Mishra 6 years, 3 months ago

*gf

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B.M Mishra 6 years, 3 months ago

Can u be my gd

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A rational number can be expressed as a terminating decimal if the denominator factors

Posted by Pradeep Phagna 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Sweta Singh 6 years, 3 months ago

2n and 5m

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Aditi and shreya u r there

Posted by ?????? ?? 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

?????? ?? 6 years, 3 months ago

If u see this message plz come our timimg

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The lengths of diagonals of a rhombus are 16cm and 12cm then what is the side of a rhombus

Posted by Roop Lopoke 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 6 years, 3 months ago

One diagonal is 16 and another 12 then half of both is 8and6.diagonal of rhombus bisect at 90'

By pythogaurus theorem

8²+6²=h²

64+36=100

Side = 10

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If sina and Cosa are the roots of the equation ax^2+bx+c=0

Posted by Sanath K 6 years, 3 months ago

CBSE > Class 10 > Mathematics

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Mrs.Kukreti wants to make a kitchen garden behind her house in a rectangular park by using bio fertilizers.for this she has done fencing by a wire of 103meter around the three sides of the plot and fourth side is covered by the wall of her house.The area of the plot is increased by 50 square meters, if the length of the plot is decreased by 5meter and bradth of the plot is increased by 5meter. find the dimensions of the plot.

Posted by Manju Anilkumar 6 years, 3 months ago

CBSE > Class 10 > Mathematics

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Can we prove root 3 +root 5 as irrational number by proving them separately as irrational numbers?

Posted by Rohan Patel 6 years, 3 months ago

CBSE > Class 10 > Mathematics

3 answers

Vishnu Malik 6 years, 3 months ago

Yes you can also prove one of them and write same as sabove

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Manoj Das 6 years, 3 months ago

Yes, We can prove

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Amritpal Kaur 6 years, 3 months ago

Yes

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Very important question ever asked in board is Yaar ye melody otni chocolaty kyu hoti h Jawab pata ha to give answer

Posted by Abhay Mathur 6 years, 3 months ago

CBSE > Class 10 > Mathematics

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acos-bsin=c prove that asin+bcos=+_√α²+b²-c²

Posted by B.M Mishra 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 6 years, 3 months ago

→ a cos∅ + b sin∅ = c .......(1) .

Now,

→ ( a cos∅ - b sin∅ )² + ( a sin∅ + b cos∅ )² .

= a²cos²∅ + b²sin²∅ - 2a sin∅ b cos∅ + a²cos²∅ + b²sin²∅ + 2a sin∅ b cos∅ .

= a²sin²∅ + a²cos²∅ + b²cos²∅ + b²sin²∅ .

= a²( sin²∅ + cos²∅ ) + b²( cos²∅ + sin²∅ ) .

= a² + b² . [ ∵ sin²∅ + cos²∅ = 1 ] .

Thus, ( a cos∅ - b sin∅ )² + ( a sin∅ + b cos∅ )² = ( a² + b² ) .

⇒ c² + ( a sin∅ + b cos∅ )² = ( a² + b² ) .

⇒ ( a sin∅ - b cos∅ )² = ( a² + b² - c² ) .

⇒ ( a sin∅ - b cos∅ ) = ±√( a² + b² - c² ) .

Hence,

a cosx - b sinx = c

a² cos²x + b² sin²x - 2ab sinx cosx = c²

a² ( 1 - sin²x) + b²( 1 - cos²x) - 2ab sinx cosx = c²

a² - a² sin²x + b² - b² cos²x - 2ab sinx cosx = c²

-(a² sin²x + b² cos²x + 2ab sinx cosx) = -a² - b² + c²

(a sinx + b cosx)² = a² + b² - c²

asinx + bcosx = +- root(a²+b²-c²)

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Some of the the reciprocal of rehman age 3 years ago and 5 years from now in 1 by 3 find his present age

Posted by Sufiya Mewati 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 6 years, 3 months ago

Let Rehman"s present age = years

Rehman's age 3 years ago =- 3 years

Five years from now = + 5 years

According to question

Rejecting negative value

Hence Rehmans age =7 Yrs

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What is the formula of perimeter of rectangle

Posted by Tanisha Phagna 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

B.M Mishra 6 years, 3 months ago

2(l+b)

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Therem 6.3

Posted by Seema Jain 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Raj Singh 6 years, 3 months ago

If in two triangles, corresponding angles are equal,then their corresponding sides are in the same ratio and hence two triangles are similar

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What is the formula of probability

Posted by Ashnoor Cheema 6 years, 3 months ago

CBSE > Class 10 > Mathematics

2 answers

Raj Singh 6 years, 3 months ago

But not in the syllabus

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Anish Kumar 6 years, 3 months ago

P(E)=n(E)/n(S)

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Solve this equation 9x+7y=20.find the value of x

Posted by Laxmi Singh 6 years, 3 months ago

CBSE > Class 10 > Mathematics

2 answers

⛩️Singh Empire? (Believe In Study) 6 years, 3 months ago

X=(20-7y)/9

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Bhavik Naik 6 years, 3 months ago

x=1

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If 2sin4x=√,find ,x.

Posted by Kalleti Karthik 6 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

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Find the distance of a point x,y from the origin

Posted by Anshul Chauhan 6 years, 3 months ago

CBSE > Class 10 > Mathematics

2 answers

Anshul Chauhan 6 years, 3 months ago

In vu tk hd dish di crush again after a staffs sucks bcuz Antioch and arch x dunks stfu arch at

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⛩️Singh Empire? (Believe In Study) 6 years, 3 months ago

√(x^2+y^2)

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Page 534 of 1971

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Now,

Let Rehman"s present age = years

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