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Find the values of a for which the expre...

Find the values of a for which the expression `(ax^2+3x-4)/(3x-4x^2+a)` assumes all real values for all real values of x

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To solve the problem of finding the values of \( a \) for which the expression \[ \frac{ax^2 + 3x - 4}{3x - 4x^2 + a} \] assumes all real values for all real values of \( x \), we will follow these steps: ...
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