Find any values of the variable that must be excluded.
A. 4
B. 2
C. 
D. 2, -2
Answer: D
Mathematics
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Establish the identity.sin
= 
(cos x + sin x)
What will be an ideal response?
Mathematics
Write the equation of the line whose graph is shown.
A. y = -2x + 7
B. y = 
x - 2
C. y = 2x + 7
D. y = 
x + 7
Mathematics
Find the domain of the function.y = 
A. all real numbers except 4 B. (-?, ?) C. (4, ?) D. [4, ?)
Mathematics
Use the rational zero test to find all the rational zeros of f(x).f(x) = 4x4 + 16x3 - 21x2 - 4x + 5
A. Zeros: 1, -5, 1/2, -1/2 B. Zeros: -1, 5, -1/2, 1/2 C. Zeros: -1, -5, 1/2, -1/2 D. Zeros: 1, -5, 2, -2
Mathematics