Class 10 lambda MCQ Questions

Question 1/1 Hard Mathematics Quadratic Equations Roots of a Quadratic Equation Class 10 Level 33

\(2x^2+\lambda x+8=0\) की जड़ें समान हों, तो \(\lambda\) के मान क्या होंगे?

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Correct Answer

A. (8) और (-8)(8) and (-8)

Step 1

For equal roots, put (D=0). From \(\lambda^2-64=0\), we get \(\lambda=\pm8\).

Step 2

The correct answer is A. (8) और (-8) / (8) and (-8). For equal roots, put (D=0). From \(\lambda^2-64=0\), we get \(\lambda=\pm8\).

Step 3

समान जड़ों के लिए (D=0) रखें। \(\lambda^2-64=0\) से \(\lambda=\pm8\) मिलता है।

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