Find the exact value of the expression.cot 15°
A. -
+ 2
B. 
+ 2
C. -
- 2
D. 
- 2
Answer: B
Mathematics
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Evaluate the improper integral.
A. 
B. 
C. 
D. 
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Find the intervals on which the function is continuous.y = 
A. 
B. 
C. 
D. 
Mathematics
Rewrite the expression as the sum and/or difference of logarithms, without using exponents. Simplify if possible.logn
A. 
logn6 + 
lognx + 
lognz
B. 
logn6 + 5 lognx - 9 lognz
C. 
logn6 + 
lognx - 
lognz
D. 
logn6 - 
lognx - 
lognz
Mathematics
Choose one of the four lines graphed which most closely resembles the graph of the given equation.y = -6
A. 
B. 
C. 
D. 
Mathematics