SOLUTION: Hi, I'm having difficulty with this type of problem. It's verifying trigonometric identities and this one is giving me trouble. The problem itself is tanvsinv/tanv+sinv=tanv-sinv

Question 137400This question is from textbook Alegbra and Trigonometry
: Hi, I'm having difficulty with this type of problem. It's verifying trigonometric identities and this one is giving me trouble. The problem itself is tanvsinv/tanv+sinv=tanv-sinv/tanvsinv. If you could help me how to solve this problem, I would be very grateful. Thank you. This question is from textbook Alegbra and Trigonometry

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
tanvsinv/tanv+sinv=tanv-sinv/tanvsinv
Cross-multiply to get:
(tan*sin^2 = tan^2-sin^2
Divide thru by sin2 to get:
tan^2 = sec^2 -1
This is a pythagorean identity:
tan^2 = tan^2
==================
Cheers,
Stan H.
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