A radical inside an exponential

A radical inside an exponential

5 marks

TGM Original

Let f(x)= esqrt(x+1), x >= -1. Find its inverse with domain and range. Find f-1(2.5), correct to 3 decimal places.

Solution:

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Answer:\((\ln x)^2-1\), \(D=[1,\infty)\), \(R=[-1,\infty)\); \(-0.160\).

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