Za realne brojeve

, pronađi minimalnu vrijednost izraza
Find the minimum value of the expression
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when
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is real.
[lang=hr]
Za realne brojeve $x$, pronađi minimalnu vrijednost izraza
\[ 2^{\sin x} + 2^{\cos x}. \] \\
[/lang]
[lang=en]
Find the minimum value of the expression
\[ 2^{\sin x} + 2^{\cos x} \]
when $x$ is real.
[/lang]