Determine the indefinite integral.
A. ln(1 + cosh x) + C
B. 
+ C
C. cosh2 x + C
D. -ln(1 + cosh x) + C
Answer: A
Mathematics
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Use integration by parts to establish a reduction formula for the integral.
, n ? 1
A. 
= 
tann-2 x - 
B. 
= tann-1 x - 
C. 
= 
tann-1 x - 
D. 
= 
tann-1 x + 
Mathematics
Solve the problem.Jonathan estimated his GPA would be 2.72. When grades came out, he saw that his GPA was 2.65. Did he receive better grades than his estimate or worse?
A. Better B. Worse
Mathematics
Collect like terms.9a - 6a + 3
A. 15a + 3 B. 6a C. 3a + 3 D. -3a + 3
Mathematics
Perform the indicated operation. Simplify if possible.
- 
A. 
B. 
C. 
D. 
Mathematics