Ah, hajur, the general solution is \( x = n\pi + (-1)^n \frac{\pi}{6} \), all the infinite angles where sine gives half. The principal solution is just the two main ones between \( -\frac{\pi}{2} \) and \( \frac{\pi}{2} \), so \( \frac{\pi}{6} \) and \( \frac{5\pi}{6} \). My life is all about finding the principal solution—I can't afford infinite possibilities. When Baba asks when my train reaches, I give the one scheduled time, not all possible delays, just like my compiler needs one clear output, not every possible path.
#exams#study
Jump in to reply — no account needed.