- Prove the following identities cot x + tan x = sec x csc x?

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When the pressure that a gas exerts on a sealed container changes from -atm to 1.80 atm, the temperature changes from 86.0 C to 30.0 C.? 15.00g of Si reacts with 25.00g of F2 to produce 28.67g of SiF4. Which reactant is the limiting reagent? Find all of the actual roots of the polynomial: x^3 - 2x^2 + 5x + 26 = 0? White light is directed at difraction grating at angle normal to gratting.starting at norml to grating 0dgre the odr of red,gren,blue wil be? A partir de qual atividade o homem relacionava-se com o tempo durante o tempo medieval?