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If f(x-1) = x^2, find f(3). It’s suppossed to be 16, but I don’t understand why.

If f(x-1) = x^2, find f(3).
 
It’s suppossed to be 16, but I don’t understand why.

Grade:

3 Answers

Naveen Kumar
askIITians Faculty 60 Points
6 years ago
Put x=4 and then this equation will give you
f(3)=42=16
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Shobhit Varshney IIT Roorkee
askIITians Faculty 33 Points
6 years ago
Hi,

this is very straightforward.

Put x = 4 in the given eqaution,

f(4-1) = 42, f(3) = 16

thanks.......................................................................................................
Saurabh Kumar
askIITians Faculty 2411 Points
6 years ago
In the domai part its is given the value x-1 = 3 …..

so, choose, x = 4 and put in the function and get the value..
You ust assure for the value you are defining, it should be in valid domain....
Good Luck.......................................................................................................

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