Without graphing the function, determine its amplitude or period as requested.y = 5 cos 
xFind the amplitude.
A. 5
B. 6?
C. 
D. 
Answer: A
Mathematics
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Find the derivative of y with respect to the independent variable.y = (cos ?)
A. -
cos ? sin ?
B. 
(cos ?)
-1
C. -
(cos ?)
-1 sin ?
D. -(cos ?)
-1 sin ?
Mathematics
Find the magnitude and direction angle (to the nearest tenth) for each vector. Give the measure of the direction angle as an angle in [0,360°].
A. 5; 233.1° B. 5; 216.9° C. 5; 36.9° D. 7; 216.9°
Mathematics
Find the exact value under the given conditions.cos ? = - 
, 
< ? < ?; sin ? = 
, 
< ? < ?Find tan(? + ?).
A. 
B. - 
C. 
D. - 
Mathematics
Write the number in fixed-point notation. Round your answer to 10 decimal places.
?
?
A. 0.0771604938 B. 0.0000007716 C. 0.0077160494 D. 0.6666666667 E. 0.0007716049
Mathematics