If x = (2+√3)/(2-√3), y = (2-√3)/(2+√3)
Then find out the value of (x²+y²-xy)/(x²+y²+xy)
x = (2+√3)/(2-√3) y = (2-√3)/(2+√3) So x+y = (2+√3)/(2-√3) + (2-√3)/(2+√3) = ((2+√3)²+ (2-√3)²)/((2)²- (√3)²) = 2(4+3)/(4-3) = x+y = 14 = xy = 1 (a+b)² + (a-b)² = 2(a^2+b^2 ) (a+b) + (a-b) = (a^2-b^2 ) = (x2+y2-xy)/(x2+y2+xy) = ((x+y)²-3xy)/((x+y)²-xy) = ((14)2-3 ×1)/((14)2-1) = (196-3)/(196-1) = 193/195
In a certain code, JUG is coded as 38 and WATER is coded as 67. How will GLASS be coded in the same code?
Which of the following numbers will replace the question mark (?) in the given series?
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Select the option that is related to the third number in the same way as the second number is related to the first number.
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Select the letter-cluster from among the given options that can replace the question mark (?) in the following series.
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Which of the following numbers will replace the question mark (?) in the given series?
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Five persons, A, B, C, D, E, are sitting around a circular table facing towards the
centre.
1. A is the neighbour of E and D.
2...
