1. In right triangle ABC, C = 90°, c = 5, and a = 4. Find sin A, cos B, and tan A.

  2. In right triangle ABC, A = 90°, b = 2, and c = 4. Find sec C, csc C, and cot B.

  3. Find the exact value of sin 45°.

  4. Find the exact value of tan 30°.

  5. Find the exact value of cos 60°.

  6. Find the exact value of cot 45°.

  7. sin 20° = cos ____.

  8. tan 62° = cot ____.

  9. cos x = sin ____.

  10. Convert 64.6° to degrees and minutes.

  11. Convert 35°15' to decimal degrees.

  12. Give the number of significant digits in 1.75.

  13. Give the number of significant digits in 12.080.

  14. Give the number of significant digits in 400.

  15. In right triangle ABC, C = 90°, B = 57°, and b = 7.8. Find A, a, and c.

 
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