SOLUTION: I need help with this particular question. sec H= 25/24 and angle H is in QIV. Find tan 2H. I started off with the equation tan 2H= 2(tanH)/1-tan^2H) I plugged in the values, but

Algebra ->  Trigonometry-basics -> SOLUTION: I need help with this particular question. sec H= 25/24 and angle H is in QIV. Find tan 2H. I started off with the equation tan 2H= 2(tanH)/1-tan^2H) I plugged in the values, but      Log On


   



Question 930421: I need help with this particular question.
sec H= 25/24 and angle H is in QIV. Find tan 2H. I started off with the equation tan 2H= 2(tanH)/1-tan^2H) I plugged in the values, but I keep getting the wrong answer. Can anyone help me. Thanks in advance.

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
sec H= 25/24
cos H = 24/25 sqrt%2825%5E2+-+24%5E2%29+=+sqrt%2849%29 = 7
........
Q IV
......
sin H = -7/25
tan H = sin/cos = -7/24
....
tan 2H = (2tan H)/(1 - tan^2 H) =