Determine which values of x and y, if any, are not permissible. f(x, y) = 
A. y ? 0
B. All values of x and y are permissible.
C. x ? 0
D. y ? -2
Answer: C
Mathematics
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A. -3 B. 23 C. 15 D. 12
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A. True B. False
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Convert the degree measure to radians. Leave answer as a multiple of ?.288°
A. 
B. 
C. 
D. 
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Use the fundamental identities to find the value of the trigonometric function.Find sec ? if cos ? = 
and sin ? > 0.
A. 4
B. - 4
C. 
D. 
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