यदि समीकरण (x-2-2(m+1)x+\(m^2+2m\)=0) के मूल बराबर हैं तो (m) का मान क्या है?
If roots of (x-2-2(m+1)x+\(m^2+2m\)=0) are equal, what is the value of (m)?
Explanation opens after your attempt
A. हर वास्तविक (m)Every real (m)
Concept
Here (D=4(m+1)2-4\(m^2+2m\)=4). Therefore the roots cannot be equal.
Why this answer is correct
The correct answer is A. हर वास्तविक (m) / Every real (m). Here (D=4(m+1)2-4\(m^2+2m\)=4). Therefore the roots cannot be equal.
Exam Tip
यहां (D=4(m+1)2-4\(m^2+2m\)=4) है। इसलिए मूल बराबर नहीं हो सकते।
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