SOLUTION: I need help proving this trigonometric function.
cos^2x + (tan^2x)(cos^2x)=1
Algebra.Com
Question 753354: I need help proving this trigonometric function.
cos^2x + (tan^2x)(cos^2x)=1
Found 2 solutions by stanbon, solver91311:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
I need help solving this trigonometric function.
cos^2x + (tan^2x)(cos^2x)=1
-----
cos^2 + [sin^2/cos^2)(cos^2) = 1
---
cos^2 + sin^2 = 1
------
True
-------
Cheers,
Stan H.
================
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Do you mean that you need help proving the trigonometric identity?
John

Egw to Beta kai to Sigma
My calculator said it, I believe it, that settles it
RELATED QUESTIONS
Verify: sec^2x-sin^2x-cos^2x = tan^2x
Really need help on this.
It breaks down as... (answered by lwsshak3)
I need help proving these two identities: •tan@-1= sin^2@-cos^2@/sin@cos@+cos^2@ (where... (answered by Alan3354)
I need help with verifying this trig identity. The problem is sec^4x-tan^4x / sec^2+... (answered by solver91311)
tan... (answered by stanbon)
plz help verify this equation. thx
(tan^2x + 1)*(cos^2x + 1) = tan^2 x + 2
(answered by hamsanash1981@gmail.com,jim_thompson5910)
I need to prove the identity.
(cos 2x) / (1 - tan^2 x) = cos^2... (answered by stanbon)
I need your help to verify this identity:
2sec^2x-2sec^2x*sin^2x-sin^2x-cos^2x=1
(answered by Alan3354)
1-cos^2x/tan^2x=sqrt3/2 (answered by lwsshak3)
Prove,... (answered by Alan3354)