A salesman is paid commission of £10 per week for each life insurance policy which he has sold. Each week he sells one new policy so that he is paid £10 commission in the first week, £20 in the second week, £30 in the third week and so on. Find his total commission in the first year of 52 weeks.
A sequence a 1, a 2, a 3,... is defined by a 1 = 3, a n + 1 = 3a n – 5, n 1. (a)Find the value a 2 and the value of a 3. (b)Calculate the value of.
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