Simplify the expression.
? 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Evaluate the expression.
A. 256 B. -64 C. 64 D. -256
Mathematics
Use a trigonometric substitution to evaluate the integral.
A. 0.343 B. 0.043 C. 0.069 D. -0.069
Mathematics
Convert the rectangular coordinates of the point to polar coordinates (r, ?) with r > 0 and 0 ? ? < 2?.(6
, 6)
A. 
B. 
C. 
D. 
Mathematics
Find all values of x satisfying the given conditions.y1 = 
, y2 = 
, y3 = 
, and y1 - y2 = y3
A. {42}
B. {21}
C. {-21}
D. {
}
Mathematics