How do you evaluate the function $f(x)=5^x$ at the value of $x=-pi$ ?

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Answer 1 · 2017-07-07T10:56:28

$f(-pi) approx 0.00637$

$f(x) = 5^x$

$:. f(-pi) = 5^-pi$

$= 1/5^pi$

$approx 1/(5^3.14159)$

$approx 1/156.992$

$approx 0.00637$

How do you evaluate the function f(x)=5^xf(x)=5^x at the value of x=-pix=-pi?