Verify trigonometric identity

[louie3006]

Homework Statement

verify the identity :
1+sec(-∅)/sin(-∅+tan(-∅) = -csc ∅

Homework Equations

The Attempt at a Solution

1+sec∅/-sin-tan∅ = -csc∅

I don't know where to start from, does anyone have any idea?

 

[tiny-tim]

1+sec∅/-sin-tan∅ = -csc∅

I don't know where to start from, does anyone have any idea?

Hi louie3006!

Just do the obvious … multiply both sides by sin∅ + tan∅

 

[louie3006]

do you mean conjugate the left side of the equation ?

 

[noumed]

are those minus signs before ∅?
i agree with tiny-tim, multiply both side by (sin∅ + tan∅) and you should see it.
if it helps, you can rewrite sec, csc and tan in terms of sin and cos.

 

[dexlex2001]

I need to verify the identity of this problem

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

 

[Mark44]

You have already started a new thread for this problem, which is the right thing to do.