sin² 30° cos² 45° + 4 tan² 30° + 1/2 sin² 90° + 1/8 cot² 60° = ? - - sin& # 178 ; 30° cos& # 178 ; 45° + 4 tan& # 178 ; 30° + 1/2 sin& # 178 ; 90° + 1/8 cot& # 178 ; 60° = ? Maths in hindi, trigonometry 2 1/3 question answers in hindi pdf 3 1/2 questions in hindi, Know About 2 Maths online test Maths notes in hindi quiz book 3 3/4