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How can i determine crop coefficient of constructed wetland macrophytes? Is it true that the oxidation number of an ion is equal to its protons subtracting its electrons? Multiply matrices A and B of any sizes legally (no size compatibility requirment). What kind of matrix multiplication am I? What town is this prefix number for 869 ? 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)?