​ If tan A = 5/6, tan B = 1/11 Show that A + B = π/4

Question

If tan A = \(\frac{5}{6}\), tan B = \(\frac{1}{11}\) Show that A + B = \(\frac{\pi}{4}\)

Answer 1

Consider tan (A+B) = \(\frac{tanA + tanB}{1 + tanA.tanB}\)