Verify the identity.
= cot y - cot x
What will be an ideal response?
= 
= 
- 
= 
- 
= cot y - cot x
Mathematics
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Match the surface show below to the graph of its level curves.
A. 
B. 
C. 
D. 
Mathematics
Use a sum or difference identity to find the exact value.
A. - 
B. - 
C. -2
D. - 
Mathematics
Solve by factoring and using the principle of zero products.25b2 + 35b - 6 = -18
A. - 
, - 
B. 
, 
C. - 
, - 
D. 
, 
Mathematics
Evaluate the expression using the given values.
?x = 10, y = 6
A. 2
B. 
C. 
D. 
Mathematics