Foundational lecture (1) | Trig | Pure Mathematics | 3rd secondary

🔥 Before you start Calculus in 3rd Secondary… make sure your basics are solid! There are some small concepts in Trigonometry that, if you don’t master them from the beginning, can make many problems much harder later on 👀 That’s why we’ve put together the most important Trigonometry basics and tricks you’ll need for 3rd Secondary in one video 💯 📌 In this video, we’ll review: • Directed Angles • Trigonometric Ratios • Unit Circle • Trigonometric Identities • Trigonometric Ratios for the Sum & Difference of Two Angles • Double & Half Angle Formulas • Sine Rule & Cosine Rule • Solving Triangles 🎯 This isn’t just a revision of the previous syllabus… it’s about building the tools you’ll need to solve 3rd Secondary problems. Because sometimes the question isn’t difficult… you just don’t have the basic concept you need for the solution. 🔥 🎬 Watch the video, strengthen your basics, and start Calculus fully prepared. 🚀 انضم لقناة التليجرام:- https://t.me/eng_santawy 🔵 تابعنا على فيسبوك:-   / eng.santawy   🔵 تابعنا على انستجرام:-   / eng.santawy   🔵 تابعنا على تيكتوك:-   / eng.santawy   🔵 للتواصل معنا عن طريق الواتساب:- https://wa.me/201157040707 #Ahmed_Ragab_ElSantawy #Mr_Ahmed_Ragab_ElSantawy #Foundation_Course #Foundation_Course_2027 #Math_Foundation #Trigonometry_Foundation #Trig #Trig_3rd_Secondary #Math_3rd_Secondary #High_School_Math #High_School_2027 #3rd_Secondary_2027 #Class_of_2027 #Math_2027 #Math_3rd_Secondary #Algebra #Math #أحمد_رجب_السنطاوي #مستر_أحمد_رجب_السنطاوي #كورس_تأسيسي #الكورس_التأسيسي #كورس_تأسيسي_2027 #تأسيس_رياضيات #تأسيس_Math