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If `alpha` and`beta` are zeroes of a polynomial f(x0`=3x^(2)-4x+1`, finda quadratic polynomial whose zeroes are `(alpha^(2))/(beta)` and `(beta^(2))/(alpha)`.

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To find a quadratic polynomial whose zeroes are \(\frac{\alpha^2}{\beta}\) and \(\frac{\beta^2}{\alpha}\), we will follow these steps: ### Step 1: Identify the given polynomial and its roots The polynomial given is: \[ f(x) = 3x^2 - 4x + 1 \] The roots of this polynomial are denoted as \(\alpha\) and \(\beta\). ### Step 2: Calculate the sum and product of the roots Using Vieta's formulas: - The sum of the roots \(\alpha + \beta = -\frac{b}{a} = \frac{4}{3}\) - The product of the roots \(\alpha \beta = \frac{c}{a} = \frac{1}{3}\) ### Step 3: Find the new roots We need to find the new roots: 1. \(\frac{\alpha^2}{\beta}\) 2. \(\frac{\beta^2}{\alpha}\) #### Step 3.1: Calculate the sum of the new roots The sum of the new roots is: \[ \frac{\alpha^2}{\beta} + \frac{\beta^2}{\alpha} \] This can be simplified as follows: \[ = \frac{\alpha^3 + \beta^3}{\alpha \beta} \] Using the identity for the sum of cubes: \[ \alpha^3 + \beta^3 = (\alpha + \beta)(\alpha^2 - \alpha\beta + \beta^2) \] We can express \(\alpha^2 + \beta^2\) using: \[ \alpha^2 + \beta^2 = (\alpha + \beta)^2 - 2\alpha\beta \] Substituting the values: \[ \alpha^2 + \beta^2 = \left(\frac{4}{3}\right)^2 - 2 \cdot \frac{1}{3} = \frac{16}{9} - \frac{2}{3} = \frac{16}{9} - \frac{6}{9} = \frac{10}{9} \] Now substituting back: \[ \alpha^3 + \beta^3 = \left(\frac{4}{3}\right)\left(\frac{10}{9} - \frac{1}{3}\right) = \left(\frac{4}{3}\right)\left(\frac{10}{9} - \frac{3}{9}\right) = \left(\frac{4}{3}\right)\left(\frac{7}{9}\right) = \frac{28}{27} \] Thus, the sum of the new roots is: \[ \frac{\alpha^2}{\beta} + \frac{\beta^2}{\alpha} = \frac{\frac{28}{27}}{\frac{1}{3}} = \frac{28}{27} \cdot 3 = \frac{84}{27} = \frac{28}{9} \] #### Step 3.2: Calculate the product of the new roots The product of the new roots is: \[ \frac{\alpha^2}{\beta} \cdot \frac{\beta^2}{\alpha} = \frac{\alpha^2 \beta^2}{\alpha \beta} = \alpha \beta \] Thus, the product of the new roots is: \[ \alpha \beta = \frac{1}{3} \] ### Step 4: Form the quadratic polynomial The quadratic polynomial with roots \(\frac{\alpha^2}{\beta}\) and \(\frac{\beta^2}{\alpha}\) can be expressed as: \[ x^2 - \text{(sum of roots)} \cdot x + \text{(product of roots)} \] Substituting the values we found: \[ x^2 - \frac{28}{9}x + \frac{1}{3} \] ### Step 5: Clear the fractions To eliminate the fractions, multiply the entire polynomial by 9: \[ 9x^2 - 28x + 3 \] ### Final Answer The required quadratic polynomial is: \[ 9x^2 - 28x + 3 \]

To find a quadratic polynomial whose zeroes are \(\frac{\alpha^2}{\beta}\) and \(\frac{\beta^2}{\alpha}\), we will follow these steps: ### Step 1: Identify the given polynomial and its roots The polynomial given is: \[ f(x) = 3x^2 - 4x + 1 \] The roots of this polynomial are denoted as \(\alpha\) and \(\beta\). ### Step 2: Calculate the sum and product of the roots ...
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NAGEEN PRAKASHAN-POLYNOMIALS-Exercise 2a
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  2. From question number 1 to 16, find zeroes of the given quadratic polyn...

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  3. From question number 1 to 16, find zeroes of the given quadratic polyn...

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  4. From question number 1 to 16, find zeroes of the given quadratic polyn...

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  5. From question number 1 to 16, find zeroes of the given quadratic polyn...

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  6. From question number 1 to 16, find zeroes of the given quadratic polyn...

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  7. Find zeroes of the given quadratic polynomials and verify the relation...

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  8. From question number 1 to 16, find zeroes of the given quadratic polyn...

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  9. Find the quadratic polynomial, the sum of whose zeroes is 17 and the p...

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  10. Find a quadratic polynomial, the sum of whose zeroes is 7 and the prod...

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  11. If the product of zeroes of the polynomial 3x^(2)+5x+k is 6, find the ...

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  12. If the sum of zeroes of the polynomial x^(2)+2kx-12 is 1, find the val...

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  13. If x=(5)/(3) and x=-(1)/(2) are the zeroes of the polynomial ax^(2)-7x...

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  14. Find a quadratic polynomial, the sum of whose zeroes is (5)/(3) and pr...

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  15. Find a quadratic polynomial, the sum of whose zeroes is -(3)/(4) and p...

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  16. If alpha, beta be the zeros of the polynomial 2x^(2)+5x+k such that...

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  17. If alpha andbeta are zeroes of a polynomial f(x0=3x^(2)-4x+1, finda qu...

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  18. If alpha,beta are zeroes of the polynomial x^2-2x-15 , then form a qua...

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  19. If alpha and beta are zeroes of a quadratic polynomial ax^(2)+bx+c. Fi...

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  20. Which of the graphs given below corresponds to linear polynomial or a ...

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