यदि (f(x)=x-2+px+q) और (g(x)=x-2-px+q) हैं, तथा \(f+g=2x^2+10\), तो (q) क्या है?
If (f(x)=x-2+px+q) and (g(x)=x-2-px+q), and \(f+g=2x^2+10\), what is (q)?
Explanation opens after your attempt
A. (5)
Concept
\(f+g=2x^2+2q\), so (2q=10) and (q=5). Comparing coefficients of like terms is the cleanest method.
Why this answer is correct
The correct answer is A. (5). \(f+g=2x^2+2q\), so (2q=10) and (q=5). Comparing coefficients of like terms is the cleanest method.
Exam Tip
\(f+g=2x^2+2q\), इसलिए (2q=10) और (q=5)। समान पदों के गुणांक मिलाना सबसे साफ तरीका है।
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