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Let alpha and beta be the roots of the q...

Let `alpha and beta` be the roots of the quadratic equation `ax^(2)+bx+c=0, c ne 0,` then form the quadratic equation whose roots are `(1-alpha)/(alpha) and (1-beta)/(beta)`.

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To find the quadratic equation whose roots are \(\frac{1 - \alpha}{\alpha}\) and \(\frac{1 - \beta}{\beta}\), we will follow these steps: ### Step 1: Identify the roots and their relationships Given the quadratic equation \(ax^2 + bx + c = 0\), the roots \(\alpha\) and \(\beta\) satisfy: - Sum of the roots: \(\alpha + \beta = -\frac{b}{a}\) - Product of the roots: \(\alpha \beta = \frac{c}{a}\) ### Step 2: Find the new roots The new roots are: \[ r_1 = \frac{1 - \alpha}{\alpha} \quad \text{and} \quad r_2 = \frac{1 - \beta}{\beta} \] ### Step 3: Calculate the sum of the new roots The sum of the new roots \(r_1 + r_2\) can be calculated as follows: \[ r_1 + r_2 = \frac{1 - \alpha}{\alpha} + \frac{1 - \beta}{\beta} \] Combining the fractions: \[ = \left(\frac{1}{\alpha} - 1\right) + \left(\frac{1}{\beta} - 1\right) = \left(\frac{1}{\alpha} + \frac{1}{\beta}\right) - 2 \] Using the relationship for the sum of roots: \[ \frac{1}{\alpha} + \frac{1}{\beta} = \frac{\alpha + \beta}{\alpha \beta} = \frac{-\frac{b}{a}}{\frac{c}{a}} = -\frac{b}{c} \] Thus, we have: \[ r_1 + r_2 = -\frac{b}{c} - 2 = -\frac{b + 2c}{c} \] ### Step 4: Calculate the product of the new roots The product of the new roots \(r_1 \cdot r_2\) is given by: \[ r_1 \cdot r_2 = \left(\frac{1 - \alpha}{\alpha}\right) \cdot \left(\frac{1 - \beta}{\beta}\right) = \frac{(1 - \alpha)(1 - \beta)}{\alpha \beta} \] Expanding the numerator: \[ = \frac{1 - (\alpha + \beta) + \alpha \beta}{\alpha \beta} = \frac{1 + \frac{b}{a} + \frac{c}{a}}{\frac{c}{a}} = \frac{a + b + c}{c} \] ### Step 5: Form the new quadratic equation Using the sum and product of the new roots, we can form the quadratic equation: \[ x^2 - (r_1 + r_2)x + (r_1 \cdot r_2) = 0 \] Substituting the values: \[ x^2 + \frac{b + 2c}{c}x + \frac{a + b + c}{c} = 0 \] Multiplying through by \(c\) to eliminate the fraction: \[ c x^2 + (b + 2c)x + (a + b + c) = 0 \] ### Final Answer The required quadratic equation is: \[ c x^2 + (b + 2c)x + (a + b + c) = 0 \]
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