Identity: Cos(theta)/(cos(theta)sin(theta))=1/(1-tan(theta))

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Identity: Cos(theta)/(cos(theta)sin(theta))=1/(1-tan(theta))

Postby IllegalNewton on Thu May 01, 2014 3:12 am

Hello can someone please help me with this identity problem? I'm in a jam and need it for tomorrow. Thank you.

Cos(theta)/(cos(theta)sin(theta))=1/(1-tan(theta))
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Re: Identity: Cos(theta)/(cos(theta)sin(theta))=1/(1-tan(the

Postby buddy on Thu May 01, 2014 11:02 am

IllegalNewton wrote:Hello can someone please help me with this identity problem? I'm in a jam and need it for tomorrow. Thank you.

Cos(theta)/(cos(theta)sin(theta))=1/(1-tan(theta))

What have you done so far? I'd start with the RHS and convert to sin's and cos's. (Use "@" for "theta".)

tan(@) = sin(@)/cos(@)
1-tan(@) = 1-sin(@)/cos(@) = cos(@)/cos(@)-sin(@)/cos(@)

etc, etc, & so forth. What do you get?
buddy
 
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