Q.202453: (sin² 30° + 4cot² 45° - sec° 60°) এর মান কত? |
(sin² 30° + 4cot² 45° - sec° 60°) এর মান কত? - - Maths in Bengali, trigonometry question answers in Bengali pdf questions in Bengali, Know About Maths online test Maths notes in Bengali quiz book