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Statement-1: If a ne 0 and the equation ...

Statement-1: `If a ne 0` and the equation `ax^(2) + bx + c = 0` has two roots `alpha and beta` such that `alpha lt -1 and beta gt 1`, then a+|b|+c and a have the opposite sign.
Statement-2: `If ax^(2) + bx + c`, is same as that of 'a' for all real values of x except for those values of x lying between the roots.

A

Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1.

B

Statement-1 is True, Statement-2 is True, Statement-2 is not a correct explanation for Statement-1.

C

Statement-1 is True, Statement-2 is False.

D

Statement-1 is False, Statement-2 is True.

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The correct Answer is:
To solve the problem, we need to analyze the two statements provided and establish their validity based on the properties of quadratic equations. ### Step-by-Step Solution: 1. **Understanding the Quadratic Equation**: We start with the quadratic equation given by: \[ ax^2 + bx + c = 0 \] where \( a \neq 0 \). The roots of this equation are denoted as \( \alpha \) and \( \beta \). 2. **Given Conditions**: We know that: - \( \alpha < -1 \) - \( \beta > 1 \) 3. **Evaluating the Function at Specific Points**: We will evaluate the quadratic function at \( x = 1 \) and \( x = -1 \): - \( f(1) = a(1)^2 + b(1) + c = a + b + c \) - \( f(-1) = a(-1)^2 + b(-1) + c = a - b + c \) 4. **Sign Analysis**: Since \( \alpha < -1 \) and \( \beta > 1 \), the quadratic function \( f(x) \) will be: - Positive for \( x < \alpha \) - Negative between \( \alpha \) and \( \beta \) - Positive for \( x > \beta \) This means: - \( f(1) < 0 \) (since \( 1 \) is between the roots) - \( f(-1) < 0 \) (since \( -1 \) is also between the roots) 5. **Setting Up Inequalities**: From the evaluations: - \( a + b + c < 0 \) (from \( f(1) < 0 \)) - \( a - b + c < 0 \) (from \( f(-1) < 0 \)) 6. **Combining Inequalities**: We can rewrite the inequalities: - From \( a + b + c < 0 \), we have: \[ a + c < -b \] - From \( a - b + c < 0 \), we have: \[ a + c < b \] 7. **Analyzing Signs**: We can combine these inequalities: - Since \( a + c < -b \) and \( a + c < b \), it indicates that \( a + c \) must be less than both \( -b \) and \( b \). - This implies that \( a + |b| + c < 0 \) if \( b \) is negative. 8. **Conclusion**: Since \( a \) and \( a + |b| + c \) must have opposite signs, we conclude that: - If \( a > 0 \), then \( a + |b| + c < 0 \) implies \( a + |b| + c \) is negative. - If \( a < 0 \), then \( a + |b| + c > 0 \). Thus, we can confirm that **Statement 1** is true, and **Statement 2** is also true based on the analysis of the behavior of the quadratic function.

To solve the problem, we need to analyze the two statements provided and establish their validity based on the properties of quadratic equations. ### Step-by-Step Solution: 1. **Understanding the Quadratic Equation**: We start with the quadratic equation given by: \[ ax^2 + bx + c = 0 ...
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OBJECTIVE RD SHARMA ENGLISH-QUADRATIC EXPRESSIONS AND EQUATIONS -Section II - Assertion Reason Type
  1. If alpha and beta are the roots of the equation x^(2)-ax+b=0and A(n)=a...

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  2. Statement-1: If alpha and beta are real roots of the quadratic equatio...

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  3. Statement-1: If a, b, c, A, B, C are real numbers such that a lt b lt ...

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  4. Statement I: x^2-5x+6<0 if 2 < x < 3 Statement II: If alpha and beta, ...

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  5. about to only mathematics

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  6. Statement-1: There is a value of k for which the equation x^(3) - 3x +...

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  7. Statement-1: If x^(2) + ax + 4 gt 0 "for all" x in R, then a in (-4, 4...

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  8. If the roots of the equation ax^2 + bx + c = 0, a != 0 (a, b, c are re...

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  9. Statement (1) : If a and b are integers and roots of x^2 + ax + b = 0 ...

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  10. Statement-1: If a, b, c are distinct real numbers, then a((x-b)(x-c))/...

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  11. Let f(x)=a x^2+bx +c a ,b ,c in R. If f(x) takes real values for re...

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  12. Statement-1: If a, b, c in R and 2a + 3b + 6c = 0, then the equation a...

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  13. Statement-1: If a ne 0 and the equation ax^(2) + bx + c = 0 has two ro...

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  14. Statement-1: If a, b, c in Q and 2^(1//3) is a root of ax^(2) + bx + c...

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  15. Statement-1: If f(x) = 1 + x + (x^(2))/(2!) + (x^(3))/(3!) + (x^(4))/(...

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  16. Given that for all real x, the expression (x^(2)-2x+4)/(x^(2)+2x+4) l...

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  17. Let a, b, c be real numbers such that ax^(2) + bx + c = 0 and x^(2) + ...

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  18. Statement-1: The cubic equation 4x^(3) - 15x^(2)+14x-5 = 0 has a root ...

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  19. Statement-1: The equation (pi^(e))/(x-e)+(e^(pi))/(x-pi)+(pi^(pi)+e^(e...

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  20. Consider a quadratic equation ax^(2) + bx + c = 0, where 2a + 3b + 6c ...

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