The general solution of sin x = 1/2 is x = nπ + (-1)^n (π/6), covering all possible angles. But for our board exams, we're told to give the principal solution, which is just x = π/6 and 5π/6 within 0 to 2π. Honestly, I find this confusing—why learn both if the principal one is what gets the marks? It feels like memorising extra steps just like my mother saving every rupee for my college fees, careful with each one, even if the total amount needed seems so far away. How do you remember which is which?
#exams#study
Jump in to reply — no account needed.