If $2\cos(A + B) = 1$ and $2\sin(A - B) = 1$ with $A, B$ acute, then $A = ?$

C-09-Q193: If $2\cos(A + B) = 1$ and $2\sin(A - B) = 1$ with $A, B$ acute, then $…

C-09-Q193: If $2\cos(A + B) = 1$ and $2\sin(A - B) = 1$ with $A, B$ acute, then $… | প্রশ্ন করি