Evaluate the integral.
A. -cot (4? + 6) + C
B. 4 cot (4? + 6) + C
C. 8 csc (4? + 6) cot (4? + 6) + C
D. - 
cot (4? + 6) + C
Answer: D
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Use series to evaluate the limit.
A. 39 B. 3 C. 18 D. 24
Let x represent the number. Use the given conditions to write an equation. Solve the equation and find the number.The sum of four times a number and 4 is equal to the difference of twice the number and 8. Find the number.
A. 4x + 4 = 2x - 8; 6 B. 4x + 4 = 2x + 8; 2 C. 4x + 4 = 2x - 8; - 6 D. 4(x + 4) = 2x - 8; - 12
Find two different spanning trees for the graph.
What will be an ideal response?
Use least common multiple or greatest common divisor to solve the problem.Three taxi cabs make a complete trip from downtown to the airport and back in 10, 26 and 65 minutes, respectively. If all three cabs leave at the same time, what is the shortest time that must pass before they are all together again?
A. 260 minutes B. 1690 minutes C. 101 minutes D. 130 minutes