Find the exact value of the expression.tan 165°
A. 
B. 
C. -2 + 
D. 2 - 
Answer: C
Mathematics
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Find the y- and x-intercepts for the equation. Then graph the equation.y - 
x = 3
A. (0, -6), (6, 0)
B. (0, 3), (-6, 0)
C. (0, 3), (-3, 0)
D. (0, 3), (6, 0)
Mathematics
Solve the given trigonometric equation analytically (using identities when necessary for exact values when possible) for values of x for 0 ? x < 2?.cos 3x cos x + sin 3x sin x = 0
A. 
, 
, 
, 
B. 
, 
C. 
D. 
, 
, 
Mathematics
Add and write the result in lowest terms.
+ 
A. 
B. 
C. 
D. 
Mathematics
Use De Moivre's theorem to simplify the expression. Write the answer in a + bi form.(1 + i)20
A. 1024i B. -1024 C. 1024 D. -1024i
Mathematics