Simplify.|-11| - |-31|
A. -20
B. 42
C. -42
D. 20
Answer: A
Mathematics
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A. f(x) =
B. f(x) =
C. f(x) =
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Use the even-odd properties to find the exact value of the expression. Do not use a calculator.tan (-?)
A. 1 B. 0 C. -1 D. undefined
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