Use the Half-angle Formulas to find the exact value of the trigonometric function. sin 165°
A. - 
B. - 
C. 
D. 
Answer: D
Mathematics
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Express in terms of sums and differences of logarithms.ln
A. 7 ln x + ln y
B. 7
+ 
C. 
ln x + 
ln y
D. ln 
Mathematics
Express the given trigonometric function in terms of the indicated function.sec ? in terms of cot ?
A. 
B. 
C. 
D. ±
Mathematics
Solve the problem.
Give the closing price of the Bank bond that matures in 2015.
A. $1019.64 B. $1097.86 C. $1084.00 D. $1029.64
Mathematics
Find the center, foci, and vertices of the ellipse.4x2 + 16y2 = 64
A. center at (0, 0)
foci at (-4, 0) and (4, 0)
vertices at (-16, 0), (16, 0)
B. center at (0, 0)
foci at (0, -2) and (0, 2)
vertices at (0, -4), (0, 4)
C. center at (0, 0)
foci at (0, - 2
) and (0, 2
)
vertices at (0, -4), (0, 4)
D. center at (0, 0)
foci at (- 2
, 0) and (2
, 0)
vertices at (-4, 0), (4, 0)
Mathematics