V Virat Bhati 🎓 Tutor III ⭐ 7.23K Points 📊 Math Q. cos80°+cos40°-cos20° का मान होगा – (A) 1/√2 (B) 1 (C) 0 (D) 1/0 👁️ Show Answer 🔗 Share ⚡Menu ✅ Correct Answer: (C) 0 You must be Logged in to update hint/solution 💬 Discussion 💬 Comment