Find the exact value of the expression if ? = 45°. Do not use a calculator.f(?) = cos ?Find f(?).
A. 
B. 
C. 
D. -
Answer: C
Mathematics
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Evaluate the expression using the order of operations.
A. 0
B. 
C. 2
D. 
Mathematics
Find a polar equation for the curve represented by the given Cartesian equation.
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Mathematics
Find the x- and y-intercepts of f.f(x) = (x + 1)(x - 9)(x - 1)2
A. x-intercepts: -1, 1, 9; y-intercept: 9 B. x-intercepts: -1, 1, -9; y-intercept: 9 C. x-intercepts: -1, 1, -9; y-intercept: -9 D. x-intercepts: -1, 1, 9; y-intercept: -9
Mathematics
Use a Venn diagram to decide if the statement is true or false.(A' ? B)' = A ? B' 
A. True B. False
Mathematics