1. Name: ___________________________
Simplifying Using Identities
1. cos(φ)tan2
(φ) + cos(φ) 2. sin2
(β)(csc2
(β) - 1)
3. sin(γ)
+ cot(γ)
1 + cos(γ)
4. (1 - cos2
(β))(csc(β))
5. 1 − sin(y)
1 +
sin(y)
6. cos(x)csc(x)(csc2
(x) - 1)

2. 7. tan2
(α) - sec2
(α) 8. sin2
(φ) − cos2
(φ)
1 − cot2
(φ)
9. 1 + cos(θ) sin(θ)
+
sin(θ) 1 + cos(θ)
10. tan(y) 1 − sec(y)
+
1 − sec(y) tan(y)
11. cot(u)csc2
(u) - cot(u) 12. sin(y)cot(y) + cos(y)