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Prove the identity. ((tan x)/(1 - cot x)) + ((1 + cot x)/(tan x)) = (tan^2 x + 2 - csc^2 x) / (tan x - 1)? Why are Europeans and Africans so muscular and strong?? Does a helve 120w mod have a charging port. I can t seem to find it? Acetic acid has orbitals (blank)sp2 orbital that forms sigma bonds with...
I pretty much don't know how to any of this and am very confused.? What is the purpose of synthesizing a compound?