Question

Find the sum to infinity 21 + 14 + 28/3​ step by step explanation

Answer 1

Answer:

63

Step-by-step explanation:

It is an infinite geometric progression with first term=21 and and common ratio=2/3

so sum to infinity can be find using formula

Sum= (first term)/(1-common ratio)

=

$\frac{21}{1 - \frac{2}{3} }$

= 21×3

=63

Hope you understand it......

Answer 2

Answer:

Hope this helps you

Thank you for asking me the question

Step-by-step explanation: