यदि (f(x)=x-2) और (g(x)=2) हों, तो ((f+g)(x)) और ((fg)(x)) बराबर कब होंगे?
If (f(x)=x-2) and (g(x)=2), when will ((f+g)(x)) and ((fg)(x)) be equal?
Explanation opens after your attempt
Correct Answer
A. \(x=\pm \sqrt{2}\)
Concept
The equation \(x^2+2=2x^2\) gives \(x^2=2\), so \(x=\pm\sqrt{2}\). Equate both expressions and solve.
Why this answer is correct
The correct answer is A. \(x=\pm \sqrt{2}\). The equation \(x^2+2=2x^2\) gives \(x^2=2\), so \(x=\pm\sqrt{2}\). Equate both expressions and solve.
Exam Tip
समीकरण \(x^2+2=2x^2\) से \(x^2=2\), इसलिए \(x=\pm\sqrt{2}\)। दोनों पक्षों को बराबर रखकर हल करें।
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