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1. As we know, every noun has a gender, but that gender also has four different variations, depending on where it lands in a sentence. 2. The four cases are: nominative, genitive, dative and accusative...

To remeber the equations us SOH CAH TOA. This is Sinx = Opposite/Hypotenuse, Cos x = Adjacent/Hypotenuse and Tanx = Opposite/Adjacent. For values x=pi/3 and x=pi/6 always start by drawing an equilateral o...

--> Sn²: 

It is a one-step mechanism which is considered to be Sn² where two species are involved in the rate determining step. Both species...