4U Past Paper Baulko 2022 Q (1 Viewer)

[hmim]

Can someone please explain why they let x = 0.25???

 

[carrotsss]

In part (i) the inequality has 1/(1+h), which is the antiderivative of ln(1+h). For the estimation, we’re finding ln(1+0.25), so therefore h (or rather x) is 0.25, which is subbed into the equation from (ii)

 

[synthesisFR]

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Can someone please explain why they let x = 0.25???

hey baulko actually copied this quesiton from cambridge (bc thats what they do, they also copy questions from a few other textbooks ) and just changed the numbers a bit so after u. figure this out have a go with the cambridge one

 

[WickedFawn]

Does anyone who did the hsc last year remember what they got for this paper compared to hsc mark?