Trigonometric Crossword Puzzle

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Across
  1. 1. One over cscx equals
  2. 4. If you square two identities and have the number one involved that means it's a
  3. 5. Radian equals what in angular measure
  4. 8. tanx and cotx are the only two
  5. 9. sinx/cosx equals
  6. 10. putting one over an identity means it's a
  7. 13. Degree equals what in angular measure
  8. 16. 180°, 180/π, and π/180 are all
  9. 19. what plus cos²x equals one
  10. 20. one plus what equals csc²x
  11. 22. 180°, 180/π, and π/180 are all
  12. 23. 1/secx equals
Down
  1. 2. This math rap song is a parody of the song
  2. 3. Pie radians equals
  3. 6. 1/cosx equals
  4. 7. The first five words that begin the math rap song are
  5. 11. The branch of mathematics that studies relationships involving lengths and angles of triangles is
  6. 12. tan²x plus what equals sec²x
  7. 14. π/180 is in
  8. 15. One plus cot²x equals
  9. 17. 180/π is in
  10. 18. cosx/sinx equals
  11. 21. 1/sinx equals