Posted by Sh on Tuesday, February 24, 2009 at 10:45pm.
solve each identity algebraically
math - Reiny, Tuesday, February 24, 2009 at 11:02pm
my usual approach is to start with the "messy" side, and change everything to sines and cosines.
=(1- sinx/cosx)/(1 - cosx/sinx)
= (cosx-sinx)/cosx * (sinx)/ (sinx - cosx)
perform similar steps for the second one, bet you'll get it
math - Sh, Tuesday, February 24, 2009 at 11:07pm
I got (1- sinx/cosx)/(1 - cosx/sinx)
but how did (1- sinx/cosx) turn to (cosx-sinx)/cosx?
math - Sh, Tuesday, February 24, 2009 at 11:29pm
nevermind, found out :) thanks
Answer This Question
More Related Questions
- Math - 1)A piano tuner uses a tuning fork. If middle C has a frequency of 264 ...
- a math - Prove cotx-1/cotx+1 = sec2x - tan2x I prove till cotx-1/cotx+1 =1/1+...
- Pre-Calc - How do I solve this? My work has led me to a dead end. tan(45-x) + ...
- trig - Verify the trigonometric identity. Please show all steps. tanx-cotx/tanx+...
- trig - verify the identity (tanx+cotx) (1) __________ = ______________ (tanx-...
- matj - prove that (cotx+tanx)(cotx-tanx) = 1/(sin^2 x) - 1/(cos^x)
- trig - verify the identity: tan^2x(1+cot^2x)=1/1-sin^2x Verify the Id: tanx + ...
- trigonometry - tanx-cotx/tanx+cotx=1-2cos squardx
- Trig - Verify that each of the following is an identity. tan^2x-sin^2x=tan^2xsin...
- calculus - 1/tanx + 1/cotx =tanx +cotx verify