Solve the equation.
= 
A. 
B. 
C. 
D. {5}
Answer: A
Mathematics
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Find the derivative.y = 
+ 6 sec x
A. y ' = - 
+ 6 tan2x
B. y ' = - 
- 6 csc x
C. y ' = - 
+ 6 sec x tan x
D. y ' = 
- 6 sec x tan x
Mathematics
Solve.A satellite is to be put into an elliptical orbit around a moon. The moon is a sphere with radius of 572 km. Determine an equation for the ellipse if the distance of the satellite from the surface of the moon varies from 649 km to 289 km.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics
Solve the problem.A wire of length 8x is bent into the shape of a square. Express the area A of the square as a function of x.
A. A(x) = 2x2
B. A(x) = 8x2
C. A(x) = 4x2
D. A(x) = 
x2
Mathematics
Perform the indicated operation(s), whenever possible.Let A = 
and B = 
. Find A + B.
A. 
B.
[-2 2 2]
C. 
D. 
Mathematics