Q.202451: যদি (tan x + sin x) = m এবং (tan x - sin x) = n, তাহলে (m² - n² ) = ? |
যদি (tan x + sin x) = m এবং (tan x - sin x) = n, তাহলে (m² - n² ) = ? - - Maths in Bengali, trigonometry question answers in Bengali pdf questions in Bengali, Know About Maths online test Maths notes in Bengali quiz book