QUIRINO STATE UNIVERSITY DIFFUN CAMPUS
Diffun, 3401 Quirino
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COLLEGE OF TEACHER EDUCATION
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Prelim Examination
In Pre-calculus Trigonometry Directions: Read and analyze carefully the questions and problems. Write your answer on your answer sheet. “These exam are your opportunity at proving your worth to everyone around you. you. Grab it and do your best, don’t let it pass through GOOD LUCK. GOD BLESS! . . I. Multiple Choice: Select the letter of correct or the best answer.
1. Base on your unit circle cos(0º)= a. 1 b. -1 c. 0 2. Base on your unit circle sin(90º)= a. ½ b. -1 c. 0 3. Tangent is? a. Opposite/hy Opposite/hypotenuse potenuse c. neither a or b b. sine/cosine d. both a and b 4. Evaluate: sin(π/2)-sin(π/3)+sin(π/4) a. 1 b. 2-√3+√2 c. 2-√5 2 2 5. Find the exact answer for: cos(60º)-sin(30º)+cos(30º) a. ½ b. -1 c. √3/2
d. ½ d. 1
d. 1/2
d. -√3/2
6. Find the value of (1,√3) if it’s a point on the terminal side of an angle in standard position. a. ½ b. -1/2 c. -√3/2 d. √3/2 7. Find the secant value of (4,-9) if it’s a point on the terminal side of an angle in standard position. a. secθ√97/-9 b. secθ-9/√97 c. secθ√97/4 d. secθ4/√97 8. Which of the following is not identity? a. sin²a+cos²a=1 b. sin a=tana x cosa 9. sint + cos²t/sint= a. sint b. csct c. sect 10. sin(x)+sin(x-π)+sin(x+ π)= a. – sin(x) sin(x) b. sin(x)
c. 1+cot²a = csc²a d. 1-sec²a = tan²a d. cost c. sec(x)
d. cos(x)
11. If tanθ
