Use any method to evaluate the integral.
A. 
x2 - 
sin 2x - 
cos 2x + C
B. 
x2 + 
+ C
C. 
x2 - 
sin 2x - 
cos 2x + C
D. 7x2 - 
sin 2x - 
cos 2x + C
Answer: A
Mathematics
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Find the product.
? 
A. 
B. 
C. 3 - b
D. 
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Simplify the expression.
4 (x ? 0)
A. 
B. x12
C. 
D. x7
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Perform the indicated operation. Assume that all variables are nonnegative.-2
- 7
A. -6
B. 6
C. -22
D. 22
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Solve using Cramer's rule. 7a- 5c = -3 2a + 6b - 6c = -6-5a - 2b= -42
A. (6, 9, 6) B. (6, 6, 9) C. (7, 4, 9) D. (6, -6, -9)
Mathematics