y = sin-1 [sin(x + 1)] হলে dydx= ? ক cos-1[sin(x + 1)] খ cos(x + 1) গ 1 ঘ cos-1 [cos(x + 1)] y = sin-1 [sin(x + 1)] হলে dydx= ? সঠিক উত্তর 1 Bissoy MCQ Team Nov 19, 2024