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SR. TEACHER (SEC. EDU.) COMP. EXAM 2025 2026 question with answer

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Question 65

Q65.उस तल का समीकरण, जो शंकु x² + 2y² − 3z² + 2yz − 5zx + 3xy = 0 को दिक् अनुपात (1, 1, 1) वाली जनक रेखा के सहारे स्पर्श करता है, है —