Question

2. Observe Arithmetic sequence 3n+1.

(a)Find the first term and common difference of the sequence.

(b)Find the 20" term of the Sequence.

Answer 1

(a) First term = 3× 1 + 1 = 4

second term = 7

common difference = 7 - 4 = 3

(b) 20 th term = 3 × 20 + 1 = 61

Answer 2

Step-by-step explanation:

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