View Full Version : Trig Help - Need Help Verifying This Identity!
dec1ble
Nov16-04, 11:31 PM
im trying to verify this identity - sin x + tan x / 1 + cos x = tan x - i get lost very easily and need the steps - can anyone help me? :yuck:
StatusX
Nov16-04, 11:40 PM
multiply by cos(x)/cos(x)
dec1ble
Nov16-04, 11:46 PM
hmm - can you simplify any of it for me in steps?
StatusX
Nov17-04, 12:37 AM
\frac{sin x + tan x}{1+cos x}
\frac{(sin x + tan x)(cos x)}{(1+cos x) (cos x)}
\frac{sin x \cdot cos x + sin x}{cos x (1+cos x)}
can you take it from here?
vBulletin® v3.8.7, Copyright ©2000-2012, vBulletin Solutions, Inc.