The best way to boost your IIFT prep is to practice the actual IIFT Question Papers. 2IIM offers you exactly that, in a student friendly format to take value from this. In the 2019 IIFT, quants were a mixed bag of questions of varying difficulty, with some routine questions and the others were very demanding. Some beautiful questions that laid emphasis on Learning ideas from basics and being able to comprehend more than remembering gazillion formulae and shortcuts.
Question 21: If X = 8 - sqrt32andY=2+โ2then(X+1/Y2 is given by
From the given values of y we can find the value of 1/y:
1y = 12+โ2 2โโ22โโ2
1y = 2โโ22
And
x = 8 - โ32=8โfrac8โ2
= 8 (1 - 1โ2)
Then (x + 1/y) = 9 (1 - 1โ2
x+1y = 98 x
=8164 x2
The question is "If X = 8 - โ32andY=2+sqrt2then(X+1/Y2 is given by
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