Find the most general antiderivative.
d?
A. cot ? + C
B. -cot ? + C
C. ? + tan ? + C
D. cos2 ? + C
Answer: B
Mathematics
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Find the unit tangent vector T and the principal unit normal vector N. r(t) = (6t sin t + 6cos t)i + (6t cos t - 6 sin t)j - 6k
A. T = (cos t)i - (sin t)j; N = (-sin t)i - (cos t)j B. T = (cos t)i + (sin t)j; N = (-sin t)i + (cos t)j C. T = (-cos t)i - (sin t)j; N = (sin t)i + (cos t)j D. T = (-cos t)i - (sin t)j; N = (sin t)i - (cos t)j
Mathematics
Evaluate with a calculator.log2 
A. 2 B. -1 C. 1 D. 0
Mathematics
Integrate the function.
A. 
+ C
B. 6 ln
+ C
C. x + ln
+ C
D. 6 ln
+ C
Mathematics
Determine which function matches the graph. Do this without using your grapher.
A: y = x - 2 - 
- 
B: y = 2 - 
- 
C: y = 2 - 
/> + 
D: y = 2 + 
- 
A. C
B. A
C. B
D. D
Mathematics