 Ask Remember Me? SN2 Posts: 2, Reputation: 1 New Member #1 May 19, 2017, 09:36 PM
Trigonometric Identities
1. Determine the non-permissible values of the identity (1/sinx)(1/cosx)=tan x + (1/tan x)

2. The equation (tan^2 θ)/(1+tan^2 θ) =sin^2 θ is true when θ=30° and when θ=135°. Does this mean that the equation is an identity? Why or why not. ma0641 Posts: 15,681, Reputation: 1012 Uber Member #2 May 20, 2017, 06:58 AM

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