Use a calculator to find the following. Round your answer to four places past the decimal point.
?
cot 31°
?
A. 1.5193
B. -1.6813
C. 1.6643
D. 1.4863
E. 1.7873
Answer: C
Mathematics
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A. 
B. 
C. 
D. 
E. none of the above
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Express the set in the simplest interval form.(-4, 4) ? [-3, 7]
A. [-3, 7] B. (-4, 7] C. [-3, 4) D. (-4, 4)
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Use the reciprocal identities for the following problem. ? If tan ? = 0a, (a? 0) find cot ?.
What will be an ideal response?
Mathematics
Simplify.2 + 20 ? 7 - 24
A. 118 B. 0 C. 130 D. 5
Mathematics