Find the exact value under the given conditions.Given cos u = - 
, with u in quadrant II, and sin v = 
, with v in quadrant II. Find tan(u + v).
A. - 
B. 
C. 
D. - 
Answer: B
Mathematics
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Evaluate the determinant by expansion by minors.
A. -21 B. 29 C. -15 D. 15
Mathematics
Write a general term an for the sequence. Assume that n begins with 1.
, - 
, 
, - 
, . . .
A. an = 
B. an = 
+ 5
C. an = 
+ 5
D. an = 
Mathematics
Find the domain and range of the function.f(x) = x2 - 20x + 101
A. Domain: (-?, ?); Range: [1, ?) B. Domain: [1, ?); Range: (-?, 0] C. Domain: [1, ?); Range:(-?, 10] D. Domain: (-?, ?); Range: [10, ?)
Mathematics
Solve. Check for extraneous solutions.(x2 - 4x + 8)1/2 - 1 = 1
A. {2, -2} B. {-2, -2} C. {2, 2} D. ?
Mathematics