Dr. J's Maths.com
Where the techniques of Maths
are explained in simple terms.

Trigonometry - Degrees and Radians.
Test Yourself 1.


 

Convert the following degrees to radians. 1: 30° 2: 100°
  3: 1° 4: 12°28'
  5: 124° 6: 46°5'
  7: 330° 8. 412°
Convert the following radians to degrees. 9. 2 rads 10: 1.234 rads
  11. 6 rads 12: 2π rads
  13: rads 14: rads
  15: rads 16: rads
Simplifing and evaluating expressions. 17. cos 2 18. tan 4
  19. cosec 2.1 20. cot 20
  21. sin 22. cos
 

23.

24. sec 1
  25. 26.
  27. If f(x) = sin x and

g(x) = cos x, evaluate

f(2) + g(3) and answer correct to three significant figures.

 28. Find the exact value of

(with a rational denominator).

Answer(√2 - √3)/2.
 

29. Show that

30. Find the exact value of

Answer√3.