Simplify. Write final answer in radical form when necessary.
A. 5u9
B. 
C. 
D. 
Answer: B
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Evaluate the integral in terms of natural logarithms.
A. ln 11
B. 16 ln (2
+ 3)
C. 4 ln (2
+ 3)
D. 4 ln (2
+ 
)
Find the unit tangent vector of the given curve.r(t) = (1 - 2t)i + (2t - 6)j + (9 + t)k
A. T = 
i - 
j - 
k
B. T = 
i - 
j - 
k
C. T = - 
i + 
j + 
k
D. T = - 
i + 
j + 
k
Use a trigonometric substitution to evaluate the integral.
A. -0.511 B. 0.064 C. 0.245 D. 0.061
The contract states, "The tenant shall not let or sublet the whole or any portion of the premises to anyone for any purpose whatsoever, unless written permission from the landlord is obtained." Write this statement symbolically. Let ? l: The tenant lets the premises. m: The tenant lets portion of the premises. s: The tenant sublets the premises. t: The tenant sublets portion of the premises. p: Permission is obtained. ?
A. 
B. ?
C. ?
D. ?
E. none of these