Find T, N, and B for the given space curve.r(t) = 
i + 
j + 4tk
A. T = 
(sin 3t)i - 
(cos 3t)j ; N = (-sin 3t)i - (cos 3t)j ; B = 
(cos 3t)i - 
(sin 3t)j - 
k
B. T = 
(cos 3t)i - 
(sin 3t)j ; N = (-sin 3t)i - (cos 3t)j ; B = 
(cos 3t)i - 
(sin 3t)j - 
k
C. T = 
(cos 3t)i - 
(sin 3t)j + 
k ; N = (-sin 3t)i - (cos 3t)j ; B = - 
k
D. T = 
(cos 3t)i - 
(sin 3t)j + 
k ; N = (-sin 3t)i - (cos 3t)j ; B = 
(cos 3t)i - 
(sin 3t)j - 
k
Answer: D
You might also like to view...
Solve.A 10-ft. board is cut into 2 pieces so that one piece is 2 feet longer than 3 times the shorter piece. If the shorter piece is x feet long, find the lengths of both pieces.
A. shorter piece: 2 ft; longer piece: 8 ft B. shorter piece: 6 ft; longer piece: 32 ft C. shorter piece: 5 ft; longer piece: 30 ft D. shorter piece: 28 ft; longer piece: 30 ft
Multiply. 
A. 2,011,000 B. 2,001,000 C. 2,000,000 D. 2,002,000
Graph the linear equation and determine its slope, if it exists.2x - 5y = 20
A. slope = - 
B. slope = - 
C. slope = 
D. slope = 
Write the quadratic function in the standard form y = a(x - h)2 + k.y = x2 + 8x + 25
A. y = (x + 4)2 - 9 B. y = (x - 4)2 + 9 C. y = (x - 4)2 - 9 D. y = (x + 4)2 + 9