Question

ПОМОГИЬЕЕЕЕЕЕЕ!!!!!!!!!!!!!!!?!?​

Answer 1

$\sf \displaystyle \sin (\pi - \pi x)-\cos \Big( \frac{\pi}{2}+\pi x \Big )=0\\\sin \pi x+\sin \pi x=0\\ 2\sin \pi x=0 \;\;\;\;\;\;\;\;\;\;\;\;\;\; |:2\\ sin \pi x=0\\\pi x = \pi n, \; n\in Z \;\;\;\; \;\;\;\;|:\pi\\x=n, \; n\in Z$