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For what value of k - 4 - is a zero of the polynomial x square minus x half 2 k + 2

Posted by Nisha Yash 5 years, 6 months ago

0 answers

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Find the zeroes of the polynomials p(x) = 4 underoot 3 x² + 5x- 2 underoot 3 and verify the relationship between the zeroes and its coefficient

Posted by Kashish Nagar 5 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 5 years, 6 months ago

P(X) = 4✓3X²+5X-2✓3

=> 4✓3X² +8X-3X-2✓3

=> 4X(✓3X+2) -✓3(✓3X+2)

=> (✓3X+2)(4X-✓3) = 0

=> (✓3X +2)= 0 OR (4X-✓3) = 0

=> X = -2/✓3 OR X = ✓3/4

-2/✓3 and ✓3/4 are the two zeros of the given polynomial.

Let Alpha = -2/✓3 and beta = ✓3/4

Relationship between the zeros and Coefficient.

Sum of zeros = (Alpha + Beta) = -2/✓3 + ✓3/4 = -8+3/4✓3 = -5/4✓3 = - ( Coefficient of X/Coefficient of X²)

And,

Product of zeros = (Alpha × Beta) = -2/✓3 × ✓3/4 = -2✓3/4✓3 = Constant term/Coefficient of X².

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Prove that 2 is rational

Posted by Vishakha Yadav 5 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 5 years, 6 months ago

Let √2 be a rational number

Therefore, √2= p/q [ p and q are in their least terms i.e., HCF of (p,q)=1 and q ≠ 0

On squaring both sides, we get
p²= 2q² ...(1)
Clearly, 2 is a factor of 2q²
⇒ 2 is a factor of p² [since, 2q²=p²]
⇒ 2 is a factor of p

Let p =2 m for all m ( where m is a positive integer)

Squaring both sides, we get
            p²= 4 m²                                                                                          ...(2)
From (1) and (2), we get
           2q² = 4m²      ⇒      q²= 2m²
Clearly, 2 is a factor of 2m²
⇒       2 is a factor of q²                                                      [since, q² = 2m²]
⇒       2 is a factor of q

Thus, we see that both p and q have common factor 2 which is a contradiction that H.C.F. of (p,q)= 1

Therefore, Our supposition is wrong

Hence √2 is not a rational number i.e., irrational number..

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Find all zeros of polynomial 4x4-20x³+23x²+5x6,if two of its zeros are 2 and 3

Posted by Sneha Gupta 5 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

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Plonomail

Posted by Abhishek Kumar 5 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Mansi Mishra 5 years, 6 months ago

I think u say that polynmial. Polynomials is an expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable(s

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1. If the zeroes of the quadratic polynomial ?2+(?+1)?+? are 2 and –3, then find the value of ? ,?. 2. If one zero of the polynomial (?2+9)?2+13?+6? is reciprocal of the other, find the value of ?. 3. If ? and ? are the zeroes of the polynomial 2?2+5?+? such that ?2+?2+??=214, then find the value of ?. 4. If ? and ? are the zeroes of the polynomial ?2−?(?+1)−?, then prove that (?+1)(?+1)=1−? 5. If ? and ? are the zeroes of the polynomial ?2+??+?, then find the polynomial whose zeroes are 1? and 1? . 6. If a polynomial ?(?)=?3−7?+? when divided by (?−1) leaves remainder 2, then find the value of ?. 7. If the polynomial (?4+2?3+8?2+12?+18) is divided by another polynomial (?2+5), the remainder comes out to be (??+?). Find the values of ? and ?. 8. Find a quadratic polynomial whose sum and product of zeroes are respectively −32√5 and −12. Also, find the zeroes of the polynomial so obtained. 9. Find the zeroes of the following polynomials by factorisation method and verify the relations between the zeroes and the coefficients of the polynomials: 2?2−(1+2√2)?+√2 10. If the remainder on division of ?3+2?2+??+3 by x – 3 is 21, find the quotient and the value of k. Hence, find the zeroes of the cubic polynomial ?2+2?2+??−18. 11. If two zeroes of the polynomial ?(?)=?4−6?3−26?2+138?−35 are (2+√3) and (2−√3), find the other zeroes.

Posted by Dev Bharati 5 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Mansi Mishra 5 years, 6 months ago

Ye question karne ke bajaye do answer yaad ho jayaga kaha se late ho question. ??????

6Thank You

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3+2squre root 5

Posted by Navneet Singh 5 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Rohan Singh 5 years, 6 months ago

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What do you mean by trigonometric?

Posted by Ujjwal Kumar 5 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Yogita Ingle 5 years, 6 months ago

Trigonometry is a branch of mathematics dealing with relations involving lengths and angles of triangles. It can, in a simpler manner, be called the study of triangles. The angles are either measured in degrees or radians.

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Aditi Jain 5 years, 6 months ago

Trigonometry means "triangle measurement"

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2x+3=5by3

Posted by Gm Sir Appujeeth 5 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 5 years, 6 months ago

2x + 3 = 5/3

2x = 5/3 - 3

2x = (5-9)/3

2x = -4/3

x = -4/6

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Solve by substitution method 2x+5y=21and 3x-2y=-16

Posted by Rasidul Hussain 5 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Archana Singh 5 years, 6 months ago

Y=5,x=-2

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Is there any student from TAPA OR from SHIVALIK PUBLIC SEN. SEC. SCHOOL, TAPA ??????

Posted by Neha Kakkar ?? 5 years, 4 months ago

CBSE > Class 10 > Mathematics

3 answers

Sandli Thakur✍?✍?(Helping Hand)? 5 years, 6 months ago

Im not

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Neha Kakkar ?? 5 years, 6 months ago

Thanks Amrita ......

1Thank You

Aditya Kumar 5 years, 6 months ago

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Do we also need to do the 5.4 exercise for our exams ? ??

Posted by Kyōka ( Demon Snow ) 5 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Neha Kakkar ?? 5 years, 6 months ago

Yes,

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Aawesh Khan 5 years, 6 months ago

Yes

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What is the relation between the zero's and coefficient in a cubic polynomial ?

Posted by Kyōka ( Demon Snow ) 5 years, 6 months ago

CBSE > Class 10 > Mathematics

5 answers

Kyōka ( Demon Snow ) 5 years, 6 months ago

Thank you Archana Singh ??

1Thank You

Archana Singh 5 years, 6 months ago

Alpha+beta+gamma=-b/a Alpha×beta×gamma=-d/a Alpha×beta+beta×gamma+gamma×alpha=c/a

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Kyōka ( Demon Snow ) 5 years, 6 months ago

PLEASE somebody answer me correctly.

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Kyōka ( Demon Snow ) 5 years, 6 months ago

No it is not possible for all cubic polynomials. ???

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Aawesh Khan 5 years, 6 months ago

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All spades are removed from the deck of cards then probability of neither a red nor a Queen

Posted by Nihal Chandupatla 5 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Nihal Chandupatla 5 years, 6 months ago

5/13 7/26 6/26 8/13

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If A and B are the zeros of a quadratic polynomial x square - 5 x + b and a minus b is equals to 1 then the value of B is - 6 - 5 5 6 what is that

Posted by Tanu Shukla 5 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Aawesh Khan 5 years, 6 months ago

52637

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If sin (A+B)=cos (A-B) =√3/2 then find A and B

Posted by Shantanu Deshmukh 5 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Archana Singh 5 years, 6 months ago

Sin(A+B)=underoot3/2 Sin(A+B)=Sin 60 A+B=60 Similarly (A-B)=30 Substituting B=15,A=45

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3 root 2 - root 2

Posted by Madhumita Sahu 5 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Kyōka ( Demon Snow ) 5 years, 6 months ago

Let √2 = x. Now 3x - x = 2x. Therefore answer = 2√2.

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Sandli Thakur✍?✍?(Helping Hand)? 5 years, 6 months ago

2√2...

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Discriminant of quadratic equations 2x square+5x+3=0

Posted by Aman Rapriya 5 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Varshini Rm 5 years, 6 months ago

Discriminate=b^2-4ac =(5)^2-4*2*3 =25-24 1

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Polynomial in two variable x

Posted by Satveek Jaiswal 5 years, 6 months ago

CBSE > Class 10 > Mathematics

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The difference of two distinct irrational number is always

Posted by Pawan Ahlawat 5 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

Miss__ Thakur 5 years, 6 months ago

IRRATIONAL NUMBER..

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Yogita Ingle 5 years, 6 months ago

The sum of two irrational numbers is always an irrational number.
The difference of two distinct irrational numbers is always an irrational number.

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1/2+1/x+1/q=1/p+q+x

Posted by Sachin Ray 5 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

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What is full from of hcf

Posted by Aparna Kumari 5 years, 6 months ago

CBSE > Class 10 > Mathematics

4 answers

Neha Kakkar ?? 5 years, 6 months ago

Highest Common Factor

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Kyōka ( Demon Snow ) 5 years, 6 months ago

Highest common factor.

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Sandli Thakur✍?✍?(Helping Hand)? 5 years, 6 months ago

Highest common factor..

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Paramjeet Kaur 5 years, 6 months ago

Highest common factor

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the angel between a tangent and chord through the point the point of contact is equal to an angle in the alternate segment

Posted by Himanshu Kumar 5 years, 6 months ago

CBSE > Class 10 > Mathematics

2 answers

उदय कुमार 5 years, 6 months ago

y=x2-4x+2

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उदय कुमार 5 years, 6 months ago

y=x2_4x=2

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Write the decimal expansion of 15/1600

Posted by Shneha Deb Nath 5 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 5 years, 6 months ago

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So chakradharpur

Posted by Shiv Kumar Mahato 5 years, 6 months ago

CBSE > Class 10 > Mathematics

0 answers

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Why all circles are similar

Posted by Gurchetan Singh Singh 5 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Mansi Mishra 5 years, 6 months ago

Similarity is a quality of scaling: two shapes are similar if you can scale one to be like the other, like these triangles ABC and DEF. Since all circles are of the same shape (they only vary by size), any circle can be scaled to form any other circle. Thus, all circles are similar!

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Find mire arthematic progression from real life

Posted by Hiba Anes 5 years, 6 months ago

CBSE > Class 10 > Mathematics