Math Crossword(Class 11 and 12)

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Across
  1. 2. the first mathematician to develope formula for area of a cyclic quadrilateral. He was also an astronomer.
  2. 4. 3D geometry
  3. 9. f(x)
  4. 11. PnC
  5. 15. AP
  6. 17. the plane having a complex number assigned to each of its points is
  7. 18. is the distance from any point to its focus, divided by the perpendicular distance from that point to its nearest directrix
  8. 19. area bounded by |x| + |y| =1 is
  9. 20. trigonometric equation
Down
  1. 1. is the ratio of any term by its preceding term in a GP(geometric progression).
  2. 3. differential equations
  3. 5. conic equation
  4. 6. probability
  5. 7. this set is subset of any set 'A'
  6. 8. matrix multiplication
  7. 10. relation between z and z bar
  8. 12. extreme fear of numbers
  9. 13. is polygon with c sides where f'(c)=0
  10. 14. statistics
  11. 16. power set of the set of natural numbers is