Complete the identity.
= ?
A. tan x + tan y
B. tan 
C. tan 
D. cot 
Answer: C
Mathematics
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Determine whether the sequence is geometric.1.4, -0.56, 0.224, -0.0896, . . .
A. Geometric B. Not geometric
Mathematics
Find the exact value of the expression. Do not use a calculator.1 - sin2 30° - sin2 60°
A. 1
B. 
C. 
D. 0
Mathematics
Provide an appropriate response.Why is the slope of a horizontal line zero?
What will be an ideal response?
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
- 
A. 
B. 
C. 
D. 
Mathematics