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Let zeroes be α=(2+√2) and β=(2-√2). Hence, α+β=(2+√2+2-√2) =4 And, αβ = (2+√2)(2-√2) ={(2)^2-(√2)^2} = 4-2 = 2 Therefore, quadratic polynomial = (x-α)(x-β) = x^2 -(α+β)x + αβ .......(I) On putting the value of (α+β) and αβ in equation (I) we get, quadratic polynomial = x^2 - 4x + 2

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One says give me hundred friend' i shall then become twice as rich as you." The other replies ,"if you give me 10, i shall be six times as rich as you. " tell me what is the amount of their respective capital?

Posted by Nikhilan Nilesh 5 years, 7 months ago

CBSE > Class 10 > Mathematics

3 answers

Aanaya Sharma 5 years, 7 months ago

Aare yr ncert ka q. H ncert solutions m dkh l

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Lucifer ? Morningstar? 5 years, 7 months ago

X-2y=-300. || Y-6x=-70

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Lucifer ? Morningstar? 5 years, 7 months ago

Let the Amount be x and y. || A/q x+100=2(y-100). And. Y+10=6(x-10)

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Show that every positive even integer is of the form 2q and that every positive odd integer is of the form 2q+1 where q is some integer

Posted by Lucky Gop 5 years, 7 months ago

CBSE > Class 10 > Mathematics

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Prove that the area of parallogram are rectangle

Posted by Shubham Thakur 5 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Ghosh 5 years, 7 months ago

See it is very easy answer.. you can find this ans in class 9 math book or class 9 ncert math textbook. Byyyyy.

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Find thw HCF of 52 and 117and express it in the form of 52x +117y

Posted by Purshottam Kumar 5 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Ghosh 5 years, 7 months ago

See it is very very very very easy. Use your brain . If further you are not able to do then massage us i will tell you. By....

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Prove that 7root5 is irrational

Posted by Anureet Kaur 5 years, 7 months ago

CBSE > Class 10 > Mathematics

3 answers

Anureet Kaur 5 years, 5 months ago

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Anureet Kaur 5 years, 7 months ago

Thanks

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Yogita Ingle 5 years, 7 months ago

Let 7√5 be a rational number.

So,

7√5 = p/q.

(p and q are co-prime number and q ≠ 0)

=> √5 = p/7q

As, we can see that p/7q ia rational so √5 should also be rational. But this contradict the fact that √5 is irrational.

So, by this we can say that 7√5 is irrational number.

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What do u mean by algebra??

Posted by Arjun Kashyap 5 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Pk . 5 years, 7 months ago

The combination of constant and variable with (+,-,×and÷) sign is called alzebra

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Convert 34.5678 bar in p/q form

Posted by Study With Meet 5 years, 7 months ago

CBSE > Class 10 > Mathematics

3 answers

Study With Meet 5 years, 7 months ago

Poore par

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_Sandli ? 5 years, 7 months ago

Ya sirf 8 par

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_Sandli ? 5 years, 7 months ago

Bar 5678 pure pr hai???

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Lcm of 256 64

Posted by Praise Evangeline 5 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Tarushi Jaipuria 5 years, 7 months ago

Lcm of 256 and 64 -- Factors of 256 = 2*2*2*2*2*2*2*2*1 And of 64 = 2*2*2*2*2*2*1 Therefore, LCM of 256 and 64 = 2*2*2*2*2*2*2*2*1 = 256.

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What is the next number in series 6, 15, 35, 77, 143,.......? (A) 171 (B) 151 (C) 191 (D) 181

Posted by Vinayak Radhakrishnan 5 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Kunal Kumar Jha 5 years, 7 months ago

181

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Yogita Ingle 5 years, 7 months ago

3 * 2=6
3*5 = 15
5*7 = 35
11*7 = 77
11*13 = 143
13*17 = 221

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(cosec A +sin A )(cosecA-SinA)=cot²A+Cos²A

Posted by Abhinav Pratap Singh 5 years, 7 months ago

CBSE > Class 10 > Mathematics

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Find zeros of the quadratic polynomial 4x^4 -4x -3 and verify the relationship between its zeros and coefficient

Posted by Harsh Singhvi 5 years, 7 months ago

CBSE > Class 10 > Mathematics

0 answers

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Show that 12^n constant end with digit 0 for any natural number n

Posted by Aman Preet 5 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Anureet Kaur 5 years, 7 months ago

If a number ends with zero then it would be divisible by 5 that is it's prime factorization must be 2*5. But this is not possible with 12n because its prime factorization is 2*2*3.It cannot be end with zero because its prime factors don't contain pair of 2*5

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Write 500002 in international form

Posted by Ritu Bansal 5 years, 7 months ago

CBSE > Class 10 > Mathematics

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Find the zeros of the quadratic polynomial X square + 5 x + 6 and verify the relationship between the zeros and the coefficients

Posted by Vidhi Garg 5 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Tarushi Jaipuria 5 years, 7 months ago

•We know that -- •Sum of the zeroes = -(coefficient of x/coefficient of x²) • -3+(-2)= -5/1 • -5=-5 • LHS= RHS • And product of the zeroes = (constant term / coefficient of x²) •. -3(-2)= 6/1 •. 6=6 •. LHS=RHS

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Tarushi Jaipuria 5 years, 7 months ago

By splitting middle term-. X²+5x+6 = x²+2x+3x+6= x(x+2) + 3(x+2) Hence the zeroes of the polynomial are (x+3) and (x+2) i.e.. x=-3 and x=-2

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HCF of 482 and 222

Posted by Secret Girl ???? 5 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Lucifer ? Morningstar? 5 years, 7 months ago

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Anureet Kaur 5 years, 7 months ago

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Show that 17*18*19*20*21*22+6 is a composite number

Posted by Jigardeep Sidhu 5 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Tarushi Jaipuria 5 years, 7 months ago

17*18*19*20*21*22+6 =6(17*3*19*20*21*22+1) =6(89,53,561) =5,37,21,366 Hence,we get that the obtained have factors other than 1 and itself. So its a composite number.

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Can two numbers have 32 as their HCF and 480 as their LCM. give reasons?

Posted by Harini 12032006 5 years, 7 months ago

CBSE > Class 10 > Mathematics

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tan= sin / cos

Posted by Account Deleted 5 years, 7 months ago

CBSE > Class 10 > Mathematics

2 answers

Vibhanshu Dwivedi 5 years, 7 months ago

SinA=P/H, cosA=B/H Sin/cos P/H÷B/H=P/B P/B=tanA

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Secret Girl ???? 5 years, 7 months ago

Sin/cos =tan

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Correct Explaination of Cross multiplication method??plzz from. Linear equation in ...

Posted by Manya Maurya 5 years, 7 months ago

CBSE > Class 10 > Mathematics

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Prove that 1 upon √5-√2 is an irrational number.

Posted by Gudiya Sharma 5 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Tarushi Jaipuria 5 years, 7 months ago

Let 1/2-√5 is a rational number. A rational number can be written in the form of p/q where p,q are integers. 1/2-√5=p/q 1/2-p/q=√5 √5=(q-2p)/2q If p,q are integers then (q-2p)/2q is a rational number. Then,√5 is also a rational number. But this contradicts the fact that √5 is an irrational number. So,our supposition is false. Therefore,1/2-√5 is an irrational number Hence proved.

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The king,queen and jack of clubs are removed from a deck of 52 playing cards and the well shuffled.One card is selected from the remaining cards.Find the probability of getting a heart

Posted by Akshjot Sandhu 5 years, 7 months ago

CBSE > Class 10 > Mathematics

1 answers

Tarushi Jaipuria 5 years, 7 months ago

If king ,queen and jack were removed then, left cards (total no. Of event) - 52-4*3=40 Left heart cards (possible event)- 13-3=10 Probability of an event - possible event / total number of events 10/40 i.e.. 1/4 So, the probability of getting heart is 1/4 or 0.25 . HOPE THIS HELPS ??

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2x+2=_10

Posted by Shashank Kumar 5 years, 7 months ago

CBSE > Class 10 > Mathematics