Answer to Question #9702 in Trigonometry for Ayna

Question #9702
given that sin Ɵ = 2/55 and cos Φ = -2/5 with Ɵ and Φ in Q-II. 1. Determine cos Ɵ? 2. Find sin Φ? 3. What is sin (Ɵ+Φ)? 4. Find cos (Ɵ+Φ)? 5. Determine tan (Ɵ-Φ)? 6. Equivalent to sin (Ɵ-Φ)?
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