Citat:
KitanovV:
Uprostiti izraz:
sin5x - sinx cos4x
sin
5x - sinxcos
4x =
sinx(sin
4 - cos
4x) =
sinx(sin
2 - cos
2x)(sin
2) + cos
2x) =
sinx(sin
2 - cos
2x) =
-sin(x)cos(2x)
Blessed are those who can laugh at themselves, for they shall never cease to be amused.