Perform the indicated operations and simplify the result. Leave the numerator and denominator in your answer in factored form.
A. 
, x ? -a, x ? a
B. 
, x ? -a, x ? a
C. 
, x ? -a, x ? a
D. 
, x ? -a, x ? a
Answer: C
Mathematics
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Evaluate the integral.
A. 
- 
B. 
C. 
- 
D. 
Mathematics
Find the unit tangent and unit normal vectors t(t) and N(t) for the curve C defined by r(t) = ti + 2t²j. Sketch the graph of C, and show T(t) and N(t) for t = 1.
What will be an ideal response?
Mathematics
Write the fraction as a whole or mixed number.
A. 2
B. 2
C. 1
D. 3
Mathematics
Perform the indicated operation.18.2 - 12.11
A. 30.31 B. 6.19 C. 6.09 D. 31.31
Mathematics