IB Maths AA SL AA 1.1 Sequences and series questions

Exam-style questions in the shape of Paper 1 and Paper 2, with full markschemes. Read the markscheme, or type, photograph or draw your answer and get it marked.

Paper
Paper 1, no calculatorPaper 2, calculator
Difficulty
EasyMediumHard

Question 1

Paper 1, no calculatorMedium6 marks

A geometric sequence has nth term unu_n where u3=18u_3=18 and u6=486u_6=486

(a)

Determine the first term and the common ratio of the sequence.

[3]
(b)

Hence, write S6S_6 the sum of the first six terms, in sigma notation and determine its value.

[3]