1 Let us consider the series iM: (n + 23) (n + 25) Note: Write the exact answer not the decimal approximation (for example write not 0.8). Answer: (1) Let { sn ) be the sequence of partial sums. Then 144 2n+44 600 n2+44n+ 600 O sn 49 2n + 44 600 72+497 600 49 2n -49 600 72 2 49 + 600 44 2n 44 O sn - 600 n2 44n -600 (ii) If's is the sum of the series thenA particle moves along a line so that its velocity at time t is v(t) = 124 - 108 measured in meters per second Note: Write the exact answer not the decimal approximation (for example write not g.ay (a) Find the displacement of the particle during the time period (