- 5x + 2y = 2 and 2x + 3y = -8?

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What about oxidation reaction charge? Ayuda me sale error al intentar subir una foto a mi pregunta :((? If 5sinθ = 3 determine the value of:
1. cos (θ-360)
2. Tan (squared)θ
3. Sin θ x cos θ (all divided by cos (squared θ)? What is the purpose of blanching foods? What forms when propene reacts with HCN?