Establish the identity: (secθ + tanθ)(secθ-tanθ) = 1?

Question

Establish the identity: (secθ + tanθ)(secθ-tanθ) = 1?

Answer 1

It's simple distribution kid, this is barely trig, it's more algebra.

1/cos^2 + tan^2 - tan^2 - sin^2/cos^2 = 1

1/cos^2 - sin^2/cos^2 = 1

sec^2 - tan^2 =1

((1 + tan^2)^1/2)^2 - tan^2 = 1

1 + tan^2 -tan^2 = 1

0=0

Sorry about not putting in theta, I'm not going to type alt + random number until I find it.  Yes, I am a p**s poor typer.

QED byaitch!

Now explain Dialectal Materialism to me.

(You make me want to take a math course again.  Those are just fun.  No critical thinking, just systematic regurgitation.)

Answer 2

I think you be wantin' the math section, not anthropology!