tweaks

quarto/derivatives/first_second_derivatives.qmd

@@ -668,6 +668,16 @@ answ = 3
 radioq(choices, answ)
 ```
 
+###### Question
+
+Consider the function `f(x) = airyai(x)`. What is the value of $f''(x) - x\cdot f(x)$ at $x=\pi$?
+
+```{julia}
+#| echo: false
+numericq(0; hint=raw"Any value of $x$ will produce the same answer")
+```
+
+
 ###### Question