What is the sum to infinity of the geometric series $4 + 4/3 + 4/9 + \dots$ ?

Practise more Sequences and series.

Free questions with an explanation for every one, and full timed IB Diploma mock tests.

All Sequences and series questions Take a mock test

More Sequences and series questions

The first term of an arithmetic progression is $2$ and its common difference is $3$ . What is the sum of its first $13$ terms?
The first term of an arithmetic progression is $8$ and its common difference is $6$ . What is the sum of its first $20$ terms?
The first term of an arithmetic progression is $9$ and its common difference is $3$ . What is the sum of its first $20$ terms?
The first term of an arithmetic progression is $5$ and its common difference is $2$ . What is the sum of its first $20$ terms?
The first term of an arithmetic progression is $9$ and its common difference is $6$ . What is the sum of its first $17$ terms?
The first term of an arithmetic progression is $9$ and its common difference is $5$ . What is the sum of its first $14$ terms?