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Trigonometric Identities Worksheet NAME: DATE: 1. Use the basic trigonometric identities to help find the remaining five trigonometric 1 functional values if tan θ = − and cos θ > 0. 2 2. Verify the identity: sec x − cos x = sin x tan x 3. Verify the identity: (cos x + tan x) = csc x + sec2 x sin x cos x 4. Verify the identity: sin x 1 + cos x + = 2 csc x sin x 1 + cos x Page 2