#A level maths Logs help

9 messages · Page 1 of 1 (latest)

drowsy siren
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Please can someone help me on Part D, I got the two equations you need and then subbed in A = 50 - Be^-1 and got 44 = -Be^-1 + B but the mark scheme doesn’t actually tell you how to get the final answer

serene mist
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im dropping maths

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😧

abstract swift
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What does the ms say

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Surely the answer is just what A is

silent dirge
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when t= 0 you know mu would equal to 94 thus you would find urself w equation 94 = A + B and then u have ur other equation where mu would equal to 50 = A + Be ^-1 when t=8 . you would thrn have to solve simultaneously to cancel out A and then solve for B and then substitue it into 94 = A + B to find A.

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@drowsy siren

tulip thunder
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@drowsy siren