Express the given trigonometric function in terms of the indicated function.cos ?, in terms of tan ?
A. cos ? = 
B. cos ? = 
C. cos ? = 
D. cos ? = ±
Answer: A
Mathematics
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Determine algebraically whether the function is even, odd, or neither even nor odd.f(x) = -7x5 - 3x3
A. Even B. Odd C. Neither
Mathematics
Find the equation of the tangent line to the curve when x has the given value.f(x) = x - 
; x = 1
A. y = 
+ 1
B. y = -7x + 28
C. y = -7x - 9
D. y = 
- 
Mathematics
Find partial fraction decomposition for the following function.f(x) = 
A. f(x) = 
+ 
B. f(x) = 
+ 
C. f(x) = 
+ 
D. f(x) = 
+ 
Mathematics
Solve the equation.x2 + 81 = 0
A. {-9, 9} B. {-9i, 9i} C. {9} D. {9i}
Mathematics