Tan pi 4 theta * tan 3 pi 4 theta July 8, 2019 16 32 64 128 Tan pi 4 theta * tan 3 pi 4 theta 1 prove Prove that tan pi 4 theta tan 3 pi 4 theta Tan pi by 4 theta into tan 3 pi by 4 theta If tan pi 4 theta )+ tan pi 4 theta )= 3
