\(x^4-10x^2+9=0\) में \(y=x^2\) रखने पर कौनसा समीकरण मिलेगा?
If \(y=x^2\) is put in \(x^4-10x^2+9=0\), which equation is obtained?
Explanation opens after your attempt
A. \(y^2-10y+9=0\)
Concept
Since (x-4=\(x^2\)2=y-2), the new equation is \(y^2-10y+9=0\). In exams, substitution can simplify a difficult form.
Why this answer is correct
The correct answer is A. \(y^2-10y+9=0\). Since (x-4=\(x^2\)2=y-2), the new equation is \(y^2-10y+9=0\). In exams, substitution can simplify a difficult form.
Exam Tip
क्योंकि (x-4=\(x^2\)2=y-2), इसलिए नया समीकरण \(y^2-10y+9=0\) है। परीक्षा में प्रतिस्थापन कठिन रूप को सरल बना सकता है।
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