math

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Across
  1. 2. numerical value of the sum of the angles of triangle
  2. 4. binomial coefficients triangular arrengment
  3. 6. ... is equal to 2 times radius
  4. 8. if y is 9 times x to the 3+ 3 times x +999, then find derivative of y and put 3 instead of x
  5. 10. if a1=5, d=3, then find value of a4=?
  6. 12. one of the methods of calculating GCD
  7. 14. a figure formed by 2 rays coming from a point
  8. 17. if 2 to the x is equal to 2048, then find x
  9. 19. sin2x=?
  10. 20. an equality of 2 ratios
  11. 22. ln e=?
  12. 23. directed straight line
  13. 24. the distance to the center at any point in the circle
  14. 25. the sum of each sides of figure
  15. 26. if S17=29 and S16= 14, then find the value of A17
Down
  1. 1. the sum of angles for pentagonal
  2. 3. the connection theorem between hypotenuse and catheters
  3. 5. opinions accepted without proof of authenticity
  4. 7. the numbers we use when counting
  5. 9. i to the 2020th power
  6. 11. how much is the sum of exterior angles
  7. 13. find the GCD of (15;16).
  8. 15. cos90=?
  9. 16. the name of longest side of right-angled triangle
  10. 18. cosx/ctgx=?
  11. 21. a figure with total of 180 internal angles