Math, asked by sanithraj, 3 months ago

If f(x)=x²-9 then f(3) and f(√9)​

Answers

Answered by akshitha1181
2

Answer:

if \: f(x) = 3 \\ then \\ f(3) =  {3}^{2}  - 9 = 9 - 9 =0 \\ if \: f(x) =  \sqrt{9}  \\ then \\  \: f( \sqrt{9} ) =  (\sqrt{9} ) {}^{2}  - 9 \\  = 9 - 9 = 0

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