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This question tests your knowledge of Snell's law, Total Internal Reflection (TIR) and the fact that the refractive index of air is 1 (which should be memorised as it is in the exam). The critical angle i...

The BRSI appears to be a valid and reliable measuring scale for androgyny as there is support from a pilot study of 1000 students using the BRSI, and their results reflected their own descriptions of thei...

By noticing the the numerator (x^2 + 1) is similar to the derivative of the denominator (x^3 +3x +2) you can integrate the function by using natural logarithms, to form the logarithm ln( x^3 +3x +2). Howe...

Let’s take this sentence from Virgil's Aeneid, Book 2 : 'tempus erat quo prima quies mortalibus aegris incipit et dono divum gratissima serpit'. Let's analyse each ending. First, sort th...

First of all- don’t be intimidated by poetry! Think about it as nothing more than a set of words arranged in a specific order. It’s down to us to add some meaning to that order. It’s like a puzzle and you...