1.   is an acute angle of a right triangle. If sin find cos and
tan .
    A. cos and
tan
B. cos and
tan
    C. cos and
tan
D. cos and
tan
    Hint

  2.   Find the value of x. Round to the nearest tenth.
   
    A. 20.3 B. 78.8
    C. 2.1 D. 131.6
    Hint

  3.   What is sin if is in standard position, its terminal side lies in quadrant IV, and sec ?
    A. B.
    C. D.
    Hint

  4.   Find the exact value of sin 405°.
    A. - 1 B.
    C. D.
    Hint

  5.   Determine the solution of XYZ. Round measures of sides to the nearest tenth.
   
    A. Y = 26.9°, Z = 58.1°, z = 9.4
    B. Y = 26.9°, Z = 58.1°, z = 4.9
    C. Y = 58.1°, Z = 26.9°, z = 9.4
    D. There is no solution.
    Hint

  6.   Determine the period of the function shown below.
   
    A. B.
    C. 1 D. -1
    Hint

  7.   Find sin
    A. B.
    C. D.
    Hint

  8.   What is the degree measure of the angle through which the hour hand on a clock rotates from 4:00 P.M. to 8:00 P.M.?
    A. –90° B. 90°
    C. 120° D. –120°
    Hint

  9.   What is the radian measurement of 5°?
    A. B.
    C. D.
    Hint

  10.   Which of the following situations will not result in one single solution?
    A. A is acute, B. A is acute, a = b sin A
    C. A is obtuse, a > b D. A is acute, a < b sin A
    Hint

  11.   Suppose C = 44°, a = 6 and b = 9. Find A if a is opposite A.
    A. 94.3° B. 6.27
    C. 41.7° D. 85.7°
    Hint

  12.   What method should be used when we have one side and one angle opposite that side?
    A. law of cosines only B. law of cosines, then law of sines
    C. law of sines D. cannot be determined from given information
    Hint

  13.   What is the period of the function represented by the graph?
   
    A. 10 B. 150
    C. 50 D. 25
    Hint

  14.   Simplify [tan (Arc tan x)] × [(Arc sin (sin y)].
    A. x B.
    C. xy D. x2y2
    Hint



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