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If (y=x^2) is put in (x^4-25x^2+144=0), which equation is obtained?(x^4-25x^2+144=0) में (y=x^2) रखने पर कौनसा समीकरण मिलेगा?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (y^2-25y+144=0)(y^2-25y+144=0)
Since (x^4=(x^2)^2=y^2), the new equation is (y^2-25y+144=0). In exams, use substitution to form a quadratic.क्योंकि (x^4=(x^2)^2=y^2), इसलिए नया समीकरण (y^2-25y+144=0) है। परीक्षा में प्रतिस्थापन से द्विघात रूप बनाएं।
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