Use reference angles to find the exact value of the expression. Do not use a calculator.tan 
A. - 
B. 
C. 
D. 
Answer: B
Mathematics
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Find all the spanning trees in the graph.
What will be an ideal response?
Mathematics
Solve the problem.Some functions have the set of complex numbers for their domain. These functions play a role in fractal geometry, which is important in nature and art. If the function 
find 
A. -3 + 12i B. -11 + 20i C. -8 + 12i D. -3 + 7i
Mathematics
Indicate whether the statement is true always, sometimes, or never.The difference between two real numbers is a real number.
A. Always B. Sometimes C. Never
Mathematics
Solve.Suppose that a polynomial function is used to model the data shown in the graph below.
For what intervals is the function decreasing?
A. 10 through 30 B. 10 through 20 and 30 through 50 C. 0 through 30 D. 0 through 10 and 30 through 50
Mathematics