1. ## Prove the Following

Prove the following( I know it's asking me to proove something)
sin((pi/4)+x)-sin((pi/4)-x)= root(2sinx)+1.41sinx

2. Originally Posted by nightrider456
$\sin(a \pm b) = \sin{a}\cos{b} \pm \cos{a}\sin{b}$
you should get just $\sqrt{2}\sin{x}$ on the right side