hello buddy how is your day going? hope your night is going well so I'm pretty sure that the answer to this is /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/ cos(pi/4) = sin (pi/2 - pi/4) = sin(pi/4) /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
hope this helps u have a fantastic day/night hope this helps -toby out