MATHS CROSSWORD

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Across
  1. 2. S denotes the ___ of all terms
  2. 7. A denotes the ____ term of an AP
  3. 9. _____ is the square of b-4ac
  4. 10. The variable used to denote an unknown angle.
  5. 11. The angle of ____ of the point viewed is the angle formed by the line of sight with the horizontal, where the point being viewed is above the horizontal.
  6. 14. L denotes the ____ term of an AP
Down
  1. 1. D is the common _______g
  2. 2. the line of ____ is drawn from the eye level of the observer.
  3. 3. APs which do not have a last term are called ____ APs
  4. 4. b^2-4ac<0 has ___ real roots
  5. 5. AP stands for ___ progression
  6. 6. x^2-4x+6 is a quadratic ____
  7. 8. An eq.n of the form ax^2+bx+c=0 is called a ____ eq.n
  8. 12. Roots are ___ if b^2-4ac = 0
  9. 13. Cos divided by Sin