Skip to content
MathsGenie logo
Quick links
Open app

Course home

  1. A Level
  3. Maths AQA
  5. Question bank

1.7.5 Geometric sequences and series (A-level only)

EasyMedium
1234567891011121314151617181920212223242526272829303132333435363738394041424344
Question 16

The first three terms of an arithmetic series are (k+3)(k+3)(k+3), (2k+4)(2k+4)(2k+4) and (4k−2)(4k-2)(4k−2) respectively.

a.

Find the value of the constant kkk.

[2]
b.

Find the sum of the first 20 terms of the series.

[3]

1.7.5 Geometric sequences and series (A-level only) Questions

  1. A Level
  2. /Maths
  3. /1.7.5 Geometric sequences and series (A-level only)