#2015_13 I just started learning calculus
Calculus
Level
3
\[\large { (\tan { x } ) }^{ { (\tan { x }) }^{ { (\tan { x }) }^{ { . }^{ .{ }^{ . } } } } }\]
Find the value of derivative of the function above at \(x=\frac { \pi }{ 4 } \).
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Anandhu Raj