Use the given triangles to evaluate the expression. Rationalize all denominators. 
csc 
sin 
- tan 
A. 
B. 2 - 
C. 
D. 1 - 
Answer: D
Mathematics
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Evaluate the integral. 
A. -sin-1
- 
+ C
B. 
+ 2 ln
+ C
C. 
- 2 ln
+ C
D. 
- sin-1
+ C
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Determine if the graph of the function opens upward or downward and whether it has a maximum or a minimum point.f(x) = 8x2
A. Downward, minimum B. Upward, minimum C. Downward, maximum D. Upward, maximum
Mathematics
Determine if the equation is an identity.cos (A + B) cos (A - B) = cos2 A + cos2 B - 1
A. No B. Yes
Mathematics
Find the indicated sum or difference, if it is defined.[-2 9 1] - [4 3]
A. not defined B. [-6 6 1] C. [-6 6 -2] D. [-6 9 -2]
Mathematics