Exponential functions has the format : number^x But these functions are not exactly power x, so I am confused: √5^log_5 x 8^lg x Help me to understand the classes of function, so I would like to know what class are the above 2 functions in

Find the local maximum and minimum values and saddle points of the function. If you have three-dimensional graphing software, graph the function with a domain and viewpoint that reveal all the important aspects of the function
$f(x,y)=x^3-6xy+8y^3$

$\frac{1}{\sec <!--\; \; -->(x)}$ in derivative?

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