(a) Differentiate each of the components to get r'(t). The rule is
.. d/dt (a*e^(bt)) = a*b*e^(bt)
The answer you have shown is the correct one.
(b) See the figure. The red curve is the position r(t) for 0 ≤ t ≤ 2. The dashed orange line is the tangent line, whose equation is
.. L(t) = r(0) +r'(0)*t = (2 +2t)i +(3 -3t)j
The characteristics that distinguishes IEEE 1394 from USB 2.0 is that USB supports more devices on a single bus
When u have an outlier, u want to use the median.....in this case, the median is 4
Assuming the sequence goes on like this 11,-33,99,-297,891,...,
its general formula is

So, the 9th term is