C-09-Q195mediumsingle_mcqIf cot(A+B)=1\cot(A + B) = 1cot(A+B)=1 and cot(A−B)=3\cot(A - B) = \sqrt{3}cot(A−B)=3 with A,BA, BA,B acute, then A=?A = ?A=?a37.5∘37.5^\circ37.5∘b30∘30^\circ30∘c