![The IB messed up the formula for the sum of an infinite geometric sequence. It should be 1-r in the denominator not r-1. Does anybody know if IB are aware of this The IB messed up the formula for the sum of an infinite geometric sequence. It should be 1-r in the denominator not r-1. Does anybody know if IB are aware of this](https://i.redd.it/c4afb8fc34171.jpg)
The IB messed up the formula for the sum of an infinite geometric sequence. It should be 1-r in the denominator not r-1. Does anybody know if IB are aware of this
![Sum of Infinite Geometric Series | Formula, Sequence & Examples - Video & Lesson Transcript | Study.com Sum of Infinite Geometric Series | Formula, Sequence & Examples - Video & Lesson Transcript | Study.com](https://study.com/cimages/videopreview/videopreview-full/screen_shot_2014-06-12_at_7.26.53_pm_125282.jpg)
Sum of Infinite Geometric Series | Formula, Sequence & Examples - Video & Lesson Transcript | Study.com
![1.4 Infinite Geometric Series Learning Objective: to explore what happens when a geometric series is infinite and to express it using sigma notation. Warm-up. - ppt download 1.4 Infinite Geometric Series Learning Objective: to explore what happens when a geometric series is infinite and to express it using sigma notation. Warm-up. - ppt download](https://images.slideplayer.com/20/5940611/slides/slide_2.jpg)
1.4 Infinite Geometric Series Learning Objective: to explore what happens when a geometric series is infinite and to express it using sigma notation. Warm-up. - ppt download
![The sum of an infinite geometric series is 15 and the sum of the squares - CBSE Class 11 - Learn CBSE Forum The sum of an infinite geometric series is 15 and the sum of the squares - CBSE Class 11 - Learn CBSE Forum](https://ask.learncbse.in/uploads/db3785/original/3X/b/b/bbb3f5b703e177cf82744903c3e4b59a0118ca0e.png)