Solve the differential equation.cos x 
+ y sin x = sin x cos x
A. y = cos x ln 
+ c cos x
B. y = sin x ln 
+ c sin x
C. y = cos x ln 
+ c cos x
D. y = cot x + c cos x
Answer: A
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Identify where f is increasing and where f is decreasing.f(x) = -
A. increasing: [-8, ?); decreasing: never B. increasing: [8, ?); decreasing: never C. increasing: never; decreasing: [8, ?) D. increasing: never; decreasing: [-8, ?)
Solve the problem.A comet follows the hyperbolic path described by 
- 
= 1, where x and y are in millions. If the sun is the focus of the path, how close to the sun is the vertex of the path? 
A. 1.2 million B. 19 million C. 4.4 million D. 3.2 million
Give the coefficient and degree of the term.-6z
A. 6, 1 B. -6, 1 C. -6, 0 D. 6, 0
Show that the equation is not an identity by listing the value(s) of the variable from among 0, ?/4, ?/2, and - ?/4 for which the equation is false.sin ? + cos ? = tan ?
A. 0
B. 0 and 
C. 0, 
, 
, and - 
D. 0, 
, and - 