- X^2+2x+5=0?

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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)? 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.? Y psoriasis is banned in gamca test for gulf country visa.. It is not contagious and y they are banning inspite of it..? I'm trying to find a compound that contains an alkaline earth metal and a polytomic ion and then finding its molar mass.? Is it true that the oxidation number of an ion is equal to its protons subtracting its electrons?