Use reference angles to find the exact value of the expression. Do not use a calculator.cot 
A. - 
B. 
C. -
D. 
Answer: B
Mathematics
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Solve the problem.Find equations of all tangents to the curve f(x) = 
that have slope -1.
A. y = x - 8 B. y = -x + 8 C. y = -x + 8, y = -x - 8 D. y = x + 8, y = x - 8
Mathematics
Solve the equation.(x - 3)(x2 - 8x + 12) = 0
A. {-3, -6, -2} B. {3} C. {3, 6, 2} D. {-3}
Mathematics
Express the radical in simplified form.
A. 36
B. 8
C. 6
D. 6
Mathematics
Find the vertices of the ellipse.3x2 + 7y2 - 24x + 28y + 55 = 0
A. (-4, 2 + 
) and (-4, 2 - 
)
B. (4 + 
, -2) and (4 - 
, -2)
C. (-4 + 
, 2) and (-4 - 
, 2)
D. (4, -2 + 
) and (4, -2 - 
)
Mathematics