यदि (x-2-2\(\alpha+2\)x+\alpha-2=0) के मूल वास्तविक और भिन्न हैं, तो \(\alpha\) पर शर्त क्या है?
If (x-2-2\(\alpha+2\)x+\alpha-2=0) has real and distinct roots, what is the condition on \(\alpha\)?
Explanation opens after your attempt
Correct Answer
A. \(\alpha>-1\)
Concept
(D=4\(\alpha+2\)2-4\alpha-2=16\(\alpha+1\)). From (D>0), \(\alpha>-1\).
Why this answer is correct
The correct answer is A. \(\alpha>-1\). (D=4\(\alpha+2\)2-4\alpha-2=16\(\alpha+1\)). From (D>0), \(\alpha>-1\).
Exam Tip
(D=4\(\alpha+2\)2-4\alpha-2=16\(\alpha+1\)) है। (D>0) से \(\alpha>-1\) मिलता है।
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