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What does the gradient of a graph of time against resistance represent? 2+2=equal how many? Int.from 0 to pi (sin^2(nx))/sin(x)? For the azide ion, N3-, the hybridization on the central atom is ??? and the hybridization on the terminal atoms is ?? Subtract (-46)base-10 from (+84)base-10 using 2's complement method.?