Thursday

July 24, 2014

July 24, 2014

Posted by **sumayya** on Monday, June 29, 2009 at 2:31pm.

_______1______ - ___1___ =__1___

sec x-tan x cos x cos x

- _______1______

sec x + tan x

- maths -
**MathMate**, Monday, June 29, 2009 at 6:32pmI will rewrite the question as:

1/(sec(x)-tan(x)) - 1/cos(x) = 1/(cos(x) - 1/(sec(x)+tan(x))

transpose terms to get:

1/(sec(x)-tan(x)) + 1/(sec(x)+tan(x)) = 2/cos(x)

Add the two fractions on the left and simplify using sec^{2}(x)=1+tan^{2}(x) on the left-hand side to get 2sec(x)=2/cos(x).

**Related Questions**

Integration - Intergrate ¡ì sec^3(x) dx could anybody please check this answer. ...

Trigonometry desperate help, clueless girl here - 2. solve cos 2x-3sin x cos 2x...

Trigonometry - 1.Solve tan^2x + tan x – 1 = 0 for the principal value(s) to two ...

trigonometry hlp me - 6.Prove that tan y cos^2 y + sin^2y/sin y = cos y + sin y...

precalculus - For each of the following determine whether or not it is an ...

trignonmetry - 6. Prove that tan λ cos^2 λ + sin^2λ/sin λ = ...

trig help much appreciated! :)) - 1. Find the complete exact solution of sin x...

Trig. - sec^2xcotx-cotx=tanx (1/cos)^2 times (1/tan)-(1/tan)=tan (1/cos^2) times...

MATH - Hi, I really need help with these questions. I did some of them halfway, ...

Math - Prove Trig. Identities 1. sec è (sec è - cos è)= tan^2 è 2. tan^2 è (1 + ...