How to Solve Integral in #Casio fx-991ES Plus 🔥

Learn how to calculate definite integrals on Casio fx-991ES Plus step by step. Super easy calculator trick for students 🔥 ✅ Steps: 1. MODE → 4 (Radian) 2. SHIFT → ∫dx 3. Enter Function (x from ALPHA + () ) 4. Add limits with comma (SHIFT + ) ) 5. Press = → Done ✅ 🎯 Example: ∫ sin(x) dx, 0 → π/2 = 1 #CalculatorTricks #Integral #Casiofx991ESPlus