Perform the indicated operation.
? 
A. 
B. x - 4
C. x + 4
D. 
Answer: C
Mathematics
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Find the exact value of the real number y.y = tan -1 
A. 
B. 
C. 
D. 
Mathematics
Write the standard form of the equation of the circle described.Center (0, 0), r = 2
A. (x - 2)2 + (y - 2)2 = 4 B. x2 + y2 = 2 C. x2 + y2 = 4 D. (x - 2)2 + (y - 2)2 = 2
Mathematics
Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.tan ? = 
, ? < ? < 
Find sin 
.
A. 
B. - 
C. - 
D. 
Mathematics
Find the sum or difference. Write the answer in lowest terms.
- 
A. 
B. 
C. 
D. 2
Mathematics