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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)? Help me to solve the following question!
Find integers x and y such that 57x+79y=17, and 400 A reaction produced 52.1 g of kcl how much o2 was produced in grams? Is it true that the oxidation number of an ion is equal to its protons subtracting its electrons? Differentiate(t) = (cos^3 t+ 3cost +7)^9?