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If one of the roots of the real quadrati...

If one of the roots of the real quadratic equation is `(2 - sqrt3)`, the equation is

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To find the quadratic equation given one of its roots as \(2 - \sqrt{3}\), we can follow these steps: ### Step 1: Identify the roots Given one root \( \alpha = 2 - \sqrt{3} \), we can find the other root \( \beta \). Since the roots are conjugates when one is irrational, the other root will be: \[ \beta = 2 + \sqrt{3} \] ### Step 2: Calculate the sum of the roots The sum of the roots \( \alpha + \beta \) can be calculated as follows: \[ \alpha + \beta = (2 - \sqrt{3}) + (2 + \sqrt{3}) = 2 + 2 = 4 \] ### Step 3: Calculate the product of the roots The product of the roots \( \alpha \cdot \beta \) can be calculated using the difference of squares: \[ \alpha \cdot \beta = (2 - \sqrt{3})(2 + \sqrt{3}) = 2^2 - (\sqrt{3})^2 = 4 - 3 = 1 \] ### Step 4: Form the quadratic equation Using the standard form of a quadratic equation \( x^2 - (sum \ of \ roots)x + (product \ of \ roots) = 0 \), we can substitute the values we found: \[ x^2 - (4)x + (1) = 0 \] Thus, the quadratic equation is: \[ x^2 - 4x + 1 = 0 \] ### Final Answer The required quadratic equation is: \[ \boxed{x^2 - 4x + 1 = 0} \]
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MCGROW HILL PUBLICATION-THEORY OF QUADRATIC EQUATION-Multiple Choice Questions
  1. If one of the roots of the real quadratic equation is (2 - sqrt3), the...

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  2. If alpha and beta are the roots of the equation x^2 +x+1 = 0, the equa...

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  3. if alpha and beta are the roots of ax^2+bx+c=0 then the value of {1/(a...

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  4. If alpha and beta are the roots equation ax^2-2bx+c=0, then alpha^3bet...

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  5. Ramesh and Mahesh solve an equation. In solving Ramesh commits a mista...

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  6. If 8, 2 are roots of the equation x^2 + ax + beta and 3, 3 are roots o...

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  7. Q. Two students while solving a quadratic equation in x, one copied th...

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  8. If alpha+beta=3, alpha^3+beta^3=7, then alpha and beta are the roots o...

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  9. If alpha,beta are the roots of ax^2+2bx+c=0 and alpha+delta,beta+delta...

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  10. The condition that the roots of the equation ax^2 + bx +c =0 be such t...

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  11. If the roots of the equation ax^(2)+bx+c=0 are in the ratio m:n then

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  12. If one root of the equation x^2-x-k=0 be square of the other, then k ...

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  13. 35. If the sum of the roots of ax^2 + bx +c = 0 be equal to sum of the...

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  14. If sin theta and cos theta are the roots of the equation lx^2 + mx + n...

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  15. If one root of the equation ix^2-2(i+1)x+(2-i)=0 is 2-i, then the othe...

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  16. Find the number of real roots of the equation (x-1)^2+(x-2)^2+(x-3)^2=...

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  17. if p and q are non zero constants, the equation x^2+px+q=0 has roots ...

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  18. The inequality |2x - 3| lt 1 is valid when x lies in the interval

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  19. For the equation 3x^2+p x+3=0,p >0, if one of the root is square of th...

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  20. If the ratio of the roots of x^2+px+q=0 be equal to the ratio of the r...

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  21. both roots of the equation (x-a)(x-b)+(x-b)(x-c)+(x-c)(x-a)=0 are

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