geo series (1 Viewer)

[enigma_1]

How to do part b?

 

[funnytomato]

have you done logarithms ? (I'd assume you've set up the inequation to solve)

if yes, take the log of boths sides of the inequation (think about whether or not this changes the inequality sign and why)
if not , trial and error method should suffice at this stage

 

[braintic]

This is exactly the same as the 'glass' question that you asked earlier.

 

[enigma_1]

Ahahaha thankss. I ended up getting it