sin(x+pi/4)=0.5

Question

need to be solved graphically

Answer 1

Step 1:

The equation is .

Consider the function is .

Graph :

Graph the equation :

Draw the line .

Observe the graph.

Locate the points where the line touches the function .

The points are .

The general solution of is .

Therefore the solution of is

where n is an integer.

Solution :

The general solution is , where n is an integer.

The solution are on .