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Solve : 2x^(2)-3x+5 lt 0...

Solve : `2x^(2)-3x+5 lt 0 `

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To solve the inequality \( 2x^2 - 3x + 5 < 0 \), we will follow these steps: ### Step 1: Identify the coefficients In the quadratic expression \( 2x^2 - 3x + 5 \), we identify the coefficients: - \( a = 2 \) - \( b = -3 \) - \( c = 5 \) ### Step 2: Calculate the discriminant The discriminant \( D \) of a quadratic equation \( ax^2 + bx + c \) is given by the formula: \[ D = b^2 - 4ac \] Substituting the values of \( a \), \( b \), and \( c \): \[ D = (-3)^2 - 4 \cdot 2 \cdot 5 = 9 - 40 = -31 \] ### Step 3: Analyze the discriminant Since the discriminant \( D = -31 \) is less than 0, this indicates that the quadratic equation has no real roots. ### Step 4: Determine the nature of the quadratic function When the discriminant is negative, the quadratic function \( 2x^2 - 3x + 5 \) does not intersect the x-axis and is always positive (since the coefficient of \( x^2 \) is positive). ### Step 5: Conclusion Since the quadratic expression \( 2x^2 - 3x + 5 \) is always greater than 0 for all \( x \), it cannot be less than 0. Therefore, the solution to the inequality \( 2x^2 - 3x + 5 < 0 \) is: \[ \text{No solution} \]
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VMC MODULES ENGLISH-QUADRATIC EQUATIONS & INEQUATIONS -JEE Advance ( Archive )
  1. Solve : 2x^(2)-3x+5 lt 0

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  2. Let alpha, beta be the roots of the equationpx^(2)+qx+r=0, p!=0. If p,...

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  3. Let p and q real number such that p!= 0,p^3!=q and p^3!=-q. if alpha a...

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  4. Let a,b,c be the sides of a triangle. Now two of them are equal to lam...

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  5. If alpha and beta are the roots of the equation x^2+ax+b=0 and alpha^4...

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  6. The sum of all real values of x satisfying the equation (x^(2) -5x+5)...

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  7. Let a and b are the roots of the equation x^2-10 xc -11d =0 and those...

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  8. If alpha,beta are the roots of a x^2+b x+c=0,(a!=0) and alpha+delta,be...

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  9. If one root of the quadratic equation ax^(2) + bx + c = 0 is equal ...

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  10. If alpha,beta are roots of x^2+-p x+1=0a n dgamma,delta are the roots ...

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  11. If alpha,beta are roots of x^2+-p x+1=0a n dgamma,delta are the roots ...

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  12. If a in R and the equation =-3(x-[x])^(2)+2(x-[x])+a^(2)=0 (where [x...

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  13. If x^(2) + (a - b) x + (1 - a - b) = 0, where a , b in R , then find ...

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  14. Let a ,b ,c be real. If a x^2+b x+c=0 has two real roots alphaa n dbet...

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  15. The smallest value of k for which both roots of the equation x^(2)-8kx...

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  16. Let a, b, c be real numbers, a != 0. If alpha is a zero of a^2 x^2+bx...

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  17. Let alpha,beta be the roots of the equation x^(2)-px+r=0 and alpha//2,...

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  18. Let (x(0), y(0)) be the solution of the following equations: (2x)^("...

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  19. If 3^(x)=4^(x-1), then x is equal to

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  20. The value of 6+ log(3//2) (1/(3sqrt2)sqrt(4-1/(3sqrt2)sqrt(4-1/(3sq...

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  21. The largest interval for whichx^(12)+x^9+x^4-x+1>0 -4<xlt=0 b. 0<x<1 ...

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