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## #1 2007-04-10 08:57:50

jusus27360
Member
Registered: 2007-04-10
Posts: 1

### Verification of Trig Identities

Please help, I'm 51 and have no clue how to solve these problems, so if anyone can help it would be greatly appreciated.

sinx + tanx/1+cosx=tanx

csc^2-cos^2 xcsc^2=1

cscx=cotx +tanx/secx

secx-tanx=1-sinx/cosx

1/sin^2x + 1/cos^2=csc^2 xsec^2x

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## #2 2007-04-10 11:42:24

Stanley_Marsh
Member
Registered: 2006-12-13
Posts: 345

### Re: Verification of Trig Identities

What is Verification of Trig Identities ?
According to my understanding

If u don't remember the formula , check out the formula section on this forum.

Last edited by Stanley_Marsh (2007-04-10 11:45:07)

Numbers are the essence of the Universe

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## #3 2007-04-11 14:54:41

jusus27360
Member
Registered: 2007-04-10
Posts: 1

jusus27360

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## #4 2007-04-14 16:21:20

akspar89
Guest

### Re: Verification of Trig Identities

I have had trouble solving this problem.

Beginning with the trigonmetic identity
cos^2(phi)+ sin^2(phi) = 1

show that the trigonmetric identity
cot(phi) + csc(phi) = sin(phi)/ 1 - cos(phi) holds

any help would be much appreciated.