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How can I find $f(x^2)$ of $f(x)$?

For example: I take the function $f(x)=a$ where a is an algebraic expression like $\sin x$, $3x^3$, etc.

Now, is it possible to find $f(x^2)$ of $f(x)=a$?

If it is possible how do you do that?

My try: If I assume $f(x)=\sin x$ then $f(x^2)=\sin(x^2)$ isn't it?

user50224
  • 966

1 Answers1

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Yes! Where you have $x$,you substitute it with $x^2$.

evinda
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