Given the graphs of f(x) = k sin x and g(x) = cos(x + n), determine the values of k and n.

Here's a step-by-step solution for each part of Question 1.2:

Part 1.2.1: Write down the value of $k$ and $n$.
The graphs are $f(x) = k \sin x$ (green curve) and $g(x) = \cos(x + n)$ (pink curve).

• For $f(x) = k \sin x$: From the graph, the maximum value of $f(x)$ is 2 at $x = 90^\circ$. Substituting this into the function: $$f(90^\circ) = k \sin(90^\circ) = k(1) = k$$