Math Ultimate

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Across
  1. 7. 1*1
  2. 8. when you divide by 0
  3. 9. the nth root of
  4. 10. 1/1
  5. 14. y=x^4
  6. 15. 1^1
  7. 17. a*b=1 a is what of b?
  8. 18. 1+1
  9. 19. the Greek letter used for sums
  10. 21. antiderivative
  11. 22. (x^2)'=2x
Down
  1. 1. about sine and cosine
  2. 2. y=x^2
  3. 3. 1-1
  4. 4. y=x^5
  5. 5. y=x
  6. 6. y=x^3
  7. 11. infinity minus infinity
  8. 12. sine over cosine
  9. 13. to find 3^x=9
  10. 15. who created e
  11. 16. 1 over tangent
  12. 20. as x approaches