TOPIC: Quadratic Inequalities
Directions (1-15): इनमें से प्रत्येक प्रश्न में दो समीकरण (I) और (II) दिए गए हैं। दोनों समीकरणों को हल करें और उत्तर दीजिए
(a) यदि x>y
(b) यदि x≥y
(c) यदि x<y
(d) यदि x ≤y
(e) यदि x = y या x और y के बीच कोई संबंध स्थापित नहीं किया जा सकता है
Q1. I. 4x²+4x+1=0
II. 9y²+6y+1=0
Q2. I. (x-2) ²-4=0
II. y²+1-2y=0
Q3. I. 3x+2y=5
II. 4x+6y=10
Q4. I. x²-4x-21=0
II. y²-16y+63=0
Q5. I. 2x=3y-1
II. x+y=7
Q6. I. x²+9x-22=0
II. 2y² – 7y + 6 = 0
Q7. I. 2y² – 13y – 34 = 0
II. 3x² – 11x – 20 = 0
Q9. I. 9x² – 54x + 77 = 0
II. 12y² – 55y + 63 = 0
Q10. I. (x – 1)² = 121
II. y² – 24y + 144 = 0
Q11. I. 6x² + 7x + 2 = 0
II. 3y² + 8y + 5 = 0
Q12. I. 7x² – 23x + 6 = 0
II. y² – 7y + 12 = 0
Q13. I. 5x² + 13x – 6 = 0
II. 2y² + 13y – 7 = 0
Q14. I. 4x + 3y = 4
II. 6x + 5y = 8
Q15. I. x² – 19x + 88 = 0
II. y² + y – 56 = 0
Solutions:
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