Question: If x cos α + y sin α = P is a tangent to the ellipse x2/a2 + y2b2 =1 then- a) a2 cos2 α + b2 sin2 α = P2 b) a2 sin2 α + b2 cos2 α = P2 c) Both d) None of these Answer: a2 cos2 α + b2 sin2 α…
ANSWERS LEVEL −I 1. C 2. C 3. C 4. C 6.C 7. A 8. C 9. B 10. C 11. A 12. D 13. C 14. B 15. D 16. A 17. A 18. C 19. A 20. D ANSWERS LEVEL −II 1. C 2. D 3. C 4. B 5. D 6. C 7. C 8. A 9. B 10. A 11…
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