Posted by John on Thursday, February 3, 2011 at 3:38am.
sin/cos * cos/sin - 1 = 1-1 = 0
1 - (1/cos)*cos = 1-1 = 0
Related Questions
trigonometry repost - Reduce (csc^2 x - sec^2 X) to an expression containing ...
Math - Trig - I'm trying to verify these trigonometric identities. 1. 1 / [...
Math - Prove Trig. Identities 1. sec è (sec è - cos è)= tan...
trig 26 - simplify to a constant or trig func. 1. sec ²u-tan ²u/cos &...
Math - Trigonometry - Verify the following: 1. cos x/(1-sinx)= sec x + tan x 2...
Trigonometry - 1.Solve tan^2x + tan x – 1 = 0 for the principal value(s) to...
Integration - Intergrate ¡ì sec^3(x) dx could anybody please check ...
trigonometry hlp me - 6.Prove that tan y cos^2 y + sin^2y/sin y = cos y + sin &#...
Trig. - sec^2xcotx-cotx=tanx (1/cos)^2 times (1/tan)-(1/tan)=tan (1/cos^2) times...
Trig - Find the exact values of the six trigonometric functions 0 if the ...
For Further Reading
