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PROVE EACH EQUATION IS AN IDENTITY Q1: 1-sec(x)cos3(x)=sin2(x) Q2:(1-cot^2(w)+cos^2(w)*cot^2(w))/csc^2(w) =sin^4(w)? What are the concentrations of H3O and OH– in oranges that have a pH of 3.90? During which proccess does water gain the most heat energy
1) condensation 2)melting 3)evaporation 4)freezing? What is the domain and range of this graph? Jocob simplified the problem, (4a)^3 and got answer of 4a^3. Roberta did the same problem and got answer 64a^3,who is correct, explain in a?