Find the exact value of the expression.
A. - 
B. -2
C. - 
D. -
Answer: D
Mathematics
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Solve the following equation for x and y using determinants:
3x + y = 9 4x - 3y = 4
Mathematics
Find the indicated intersection or union.{v, w, x, y, z} ? {q, s, y, z}
A. {q, s, v, w, x, y, z} B. {q, s, u, v, w, x, y} C. {s, u, v, w, x, z} D. {s, u, w}
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
A. 
B. 
C. 
D. 
Mathematics
Given that f(x) = sin x, g(x) = cos x, and h(x) = tan x, evaluate the given function. The point (x, 
), on the circle 
, also lies on the terminal side of an angle ? in standard position. The point 
, on the circle 
, also lies on the terminal side of an angle ? in quadrant IV. f(? + ?)
A. 
B. 
C. 
D. 
Mathematics