Class 11

05. Quadratic Equations question bank (Maths)

Practice 284 free Class 11 Maths - 05. Quadratic Equations questions with answers and step-by-step solutions.

Q1.

If \( \alpha^2 = 5\alpha - 3 \), \( \beta^2 = 5\beta - 3 \), then the value of \( \dfrac{\alpha}{\beta} + \dfrac{\beta}{\alpha} \) is –  

(A)
\( \dfrac{19}{3} \)
(B)
\( \dfrac{25}{3} \)
(C)
\( -\dfrac{19}{3} \)
(D)
none of these
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Q2.

If the roots of the equation \( x^2 - bx + c = 0 \) are two consecutive integers, then \( b^2 - 4c \) equals –  

(A)
1
(B)
2
(C)
3
(D)
–2
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