Question

Mathematical issue can you​

Answer 1

Hi !

Solution :-

First of all let f(x) = y

so , y = x²+2

y-2 = x²

x = √y-2

Then Change X -> y and y -> X

So, y = √x-2

f^-¹(x) = √x-2

•°• f^-¹(18) = √18-2 = √16 = 4 Answer

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Hope it's helpful !

Answer 2

Answer:

refer to this attachment ✅✅