Perform the indicated operation. Simplify, if possible.
- 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Use a negative-angle identity to write an equivalent trigonometric expression involving a positive angle.cot 
A. 1 - cot 
B. cot 
C. tan 
D. -cot 
Mathematics
Use a calculator to find the approximate value of the expression. Round the answer to two decimal places.cos 75°
A. 0.99 B. 0.33 C. 0.92 D. 0.26
Mathematics
Solve the problem.In a probability model, which of the following numbers could be the probability of an outcome:0, 0.2, -0.01, - 
, 
, 
, 1, 1.5
A. 0, 0.2, -0.01, 1, 1.5
B. 0, 0.2, -0.01, - 
, 
, 1
C. 0, 0.2, 
, 1
D. 0.2, 
, 1
Mathematics
Evaluate the exponential expression. 54
A. 1024 B. 125 C. 625 D. 20
Mathematics