Solve the problem.If tan ? = x + 1 and tan ? = x - 1, show that cot(? + ?) = 
What will be an ideal response?
cot(? + ?) = 
= 
= 
= 
= 
Mathematics
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Solve.
A. 
, 
B. 
, 
, 
, 
C. 
, 
, 
, 
D. no solution
Mathematics
Determine the amplitude and range of the function and sketch its graph.y = -2 cos 3x
A. amplitude: 2; range: [0, 2]
B. amplitude: 2; range: [-2, 2]
C. amplitude: 2; range: [-2, 2]
D. amplitude: -2; range: [0, 2]
Mathematics
Evaluate the expression.(f ? f)(6) when f(x) = 3x + 4 and g(x) = 2x2 + 3
A. 34 B. 22 C. 38 D. 70
Mathematics
Find the number of elements in the indicated set by referring to the given table.The table below shows the results of a poll taken in a U.S. city in which people are asked which candidate they intend to vote for in an upcoming presidential election. 
Find the number of people in the set O ? (C' ? E')
A. 65 B. 525 C. 27 D. 92
Mathematics