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Verify trigonometric identity

  • Thread starter louie3006
  • Start date
  • #1
54
0

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?
 

Answers and Replies

  • #2
tiny-tim
Science Advisor
Homework Helper
25,832
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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∅ :smile:
 
  • #3
54
0
do you mean conjugate the left side of the equation ?
 
  • #4
45
0
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.
 
  • #5
I need to verify the identity of this problem

tan^2(x/2)=(sec x-1)/(sec x+1)
 
  • #6
33,639
5,301
You have already started a new thread for this problem, which is the right thing to do.
 

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