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How to test Petrol in blood? Why anti Rh antibodies destroy foetal lamphocytes and dot effect mother s lamphocytes? Outside temperature over a day can be modelled as a sinusoidal function.? If the earth is truly spherical, why do we not feel like we are standing upside down or sideways on the earth? i need answers please.? 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)?