Find T, N, and B for the given space curve.r(t) = (2 + t)i + (6 + ln(sec t))j - 6k, -?/2 < t < ?/2
A. T = (cos t)i - (sin t)j; N = (-sin t)i - (cos t)j ; B = -k
B. T = (-cos t)i - (sin t)j; N = (-cos t)i + (sin t)j ; B = k
C. T = (-cos t)i - (sin t)j; N = (sin t)i - (cos t)j ; B = -k
D. T = (cos t)i + (sin t)j; N = (- sin t)i + (cos t)j ; B = k
Answer: D
You might also like to view...
Write the series and find the sum.
A. 9 + 13 + 17 + 21 = 60 B. 24 + 28 + 32 + 36 = 120 C. 5 + 9 + 13 + 17 = 44 D. 9 + 13 + 17 + 21 = 51
Solve the problem. Round your answer, as needed.Doug and Inga can deliver 100 papers in 4 hours. How long would it take them to deliver 95 papers?
A. 4.8 hours B. 4.2 hours C. 380 hours D. 3.8 hours
Write an equation in slope-intercept form of a line satisfying the given conditions.Slope - 
; y-intercept 
A. y = 
x + 
B. y = - 
x - 
C. y = 
x - 
D. y = - 
x + 
Simplify the expression. Assume that all variables represent non-negative real numbers.
- 9
+ 10
A. -36
B. -50
C. 22
D. -22