Evaluate the determinant.
A. 2ab
B. a2 - b2
C. 0
D. a2 + b2
Answer: B
Mathematics
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? It is not Tuesday.
What will be an ideal response?
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Use the given right triangle to find the trigonometric function.tan A
A. 
B. 
C. 
D. 
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Use a double-angle identity to find the exact value of the expression.2 cos2 
- 1
A. - 
B. 
C. 
D. - 
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Rewrite the sum using sigma notation.
+ 
+ 
+ 
+ 
A. 
B. 
C. 
D. 
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