How do i go about solving sin π/4 + cos π/4

Hello Shakyiagrooms. We know:


AND


By knowing this, we can set the problem up as the following:
 
Now we can add them since they have the same denominators:

Now we have to rationalize the radical denominator . We do this by multiplying by




So our answer "Drum Roll Please" =
 

The answer would be c.hope this .