Find the exact value of x.cos-1 x = csc-1 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Solve the given differential equation. (The form of yp is given.)D2y - 3Dy = -3ex + xex (Let yp = Aex + Bxex .)
A. y = c1 + c2e3x + 
ex - 
xex
B. y = c1 + c2e3x - 
ex - 
xex
C. y = c1 + c2e3x + 
ex + 
xex
D. y = c1 + c2e3x - 
ex - 
xex
Mathematics
Eliminate the parameter t from the following and then sketch the graph:
?
?
A. 
B.
C.
D.
E.
Mathematics
Find the length of the arc intercepted by a central angle ? in a circle of given diameter or radius. Round your answer to as many places as your calculator will allow.Diameter 12.18 in., ? = 96°
A. 10.2038929 in. B. 10.4038929 in. C. 10.3038929 in. D. 10.5038929 in.
Mathematics
Find all values x = a where the function is discontinuous.f(x) = 
A. a = 3 B. Nowhere C. a = 8 D. a = -3
Mathematics