Prove this identity

[backseatlov3]

I need help proving this identity, I haven't done this in over a year =[

(sin x)(sec x) = tan x

 

[Loren]

Two of the basic reciprocal identities include...
\(\displaystyle \sec x = \frac{1}{\cos x}\) and

\(\displaystyle \tan x = \frac{\sin x}{\cos x}\)

Corrected, thanks to mmm4444bot.

 

[mmm4444bot]

Loren meant to type the identity for sec(x).

\(\displaystyle sec(x) \; = \; \frac{1}{cos(x)}\)

 

[fasteddie65]

I think Loren DID state the identity for sec x: sec x = 1/cos x.

 

[mmm4444bot]

I think Loren DID state the identity for sec x …

Well, Eddie, not much gets past you, eh.