Evaluate the integral.Use the formula
to evaluate the integral. 
A. x cot-1 x - ln sin(cot-1 x) + C
B. x cot-1 x - ln sin x + C
C. x cot-1 x - x + C
D. x cot-1 x + ln sin(cot-1 x) + C
Answer: A
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Solve the differential equation.2x dy + y dx = 7x4 dx
A. y = 
x4 + 
B. y = 7x4 + 
C. y = 
x3 + 
D. y = 
x9/2 + c
The question(s) that follow refer to the problem of finding the minimum spanning tree for the weighted network shown below.
Using Kruskal's algorithm, which edge should we choose last?
A. DC B. AE C. GH D. AB E. none of these
Suppose a pair of dice are rolled. Consider the sum of the numbers on the top of the dice and find the probability. ? 7, given that at least one die came up 2
What will be an ideal response?
Determine the constant of variation for the stated condition.b varies directly as a, and b = 78 when a = 6.
A. k = 13
B. k = 72
C. k = 14
D. k = 