A-Level Maths: F7-07 [Exponential Growth & Decay: The Investment Problem]

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Hello, I was Just wondering if this is an AS topic because on the Edexcel spec it says logarithms and exponentials continued, but the video is in square brackets.

skyeforster
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omg you help me so mutch tnahnk you fore the vieodes! im from hungray me n o speeak english ver wel :)

Traffe
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why doest the geometric series work in this case? so basicallly why cant you do 800(1.04)^n-1 where n = number of years

x_nova_x
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would it not be better to use 800e^(0.04*10) =£1193.46 for question b) ?

meh