Evaluate the integral.
A. 7 ln 
+ C
B. 7 sin x + C
C. ln 
+ C
D. 
ln 
+ C
Answer: D
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Find T, N, and B for the given space curve.r(t) = (cosh t)i + (sinh t)j + k
A. T = - 
(tanh t sech t)i + 
j + 
(sech t)k; N = (-sech t)i - (tanh t)k; 
B. T = 
(tanh t sech t)i + 
j + 
(sech t)k; N = (sech2 t)i - (sinh t)k; 
C. T = 
(tanh t)i + 
j + 
(sech t)k; N = (sech t)i - (tanh t)k; 
D. T = - 
(tanh t)i + 
j + 
(sech t)k; N = (-sech t)i - (sinh t)k ; 
Provide an appropriate response.The x- and y-intercepts of the graph of y = 
are
A. (0, 0), (±1, 0), (0, -3). B. (±1, 0), (0, 3). C. (3, 0). D. (1,0), (0, 3). E. (0, -3).
Use the quotient rule to divide and simplify.
A. 8x5
B. 8x5 
C. x5 
D. x5 
Use scientific notation to calculate the answer to the problem. Write the answer in scientific notation.
A. 17 × 10-3 B. 1.7 × 10-4 C. 1.7 × 10-5 D. 17 × 10-4