Question

Как решить sin(t+4pi)+sin(t+8pi)=1

Answer 1

$sin(t+4 pi )+sin(t+8 pi )=1\ \ sin t+sin t=1\ \ 2sin t=1\ \ sin t = 0.5\ \ t=(-1)^kcdot frac{pi}{6}+ pi k,k in mathbb{Z}$