This is a sketch of y = sin x. The vertex A is at (90°, 1).
Write down the coordinates of the vertex A of the curve with equation
a) y = sin x + 2
b) y=-sin x

21

Step-by-step explanation:

angle x opposes to angle yf2 so gg 21 would corrleate so 923 which means 14 is corrleting to angle y sin x.

The vertex A is at (90°, 1).

hope this helps

:)