Thursday

October 23, 2014

October 23, 2014

Posted by **Lisa** on Tuesday, February 19, 2013 at 2:52am.

- Pre Cal -
**Reiny**, Tuesday, February 19, 2013 at 9:43amsince all angles are 2u , let Ø - 2u for ease of typing

I will assume you are proving this as an identity

LS = (1/cos^2 Ø - 1)/(1/cos^2 Ø)

= (1 - cos^2 Ø)/cos^2 Ø * (cos^2 Ø)

= 1 - cos^2 Ø

= sin^2 Ø

= RS

replace Ø with 2u if you have to

**Answer this Question**

**Related Questions**

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

Pre-Cal - I'm trying to do this identities homework and i can't figure this one ...

trig - how do you start this equation i've been tryng it for 20min. sec^6x(...

Pre-Cal - Simplify the expression 1/tan^2x+1 tan^2x+1 = sec^2x = 1/sec^2x I am ...

pre-cal - what are the steps to solve sec y sin (pi/2-y)=1

Pre-Cal - I do not know how to find the angle of the function sec 4x = 2 on the...

Pre-Cal - I do not know how to find the angle of the function sec 4x = 2 on the...

math - How would you establish this identity: (1+sec(beta))/(sec(beta))=(sin^2(...

Pre Cal - What is the value of: sin^-1 0.6349, sec^-1 0.5496, tan^-1 0.3457

Pre-Cal - Perform the addition or subtraction. tanx - sec^2x/tanx tan^2(x)/tan(x...