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Maths Puzzle
if(5x^2 - 3y^2): xy = 11:2, then the positive value of x/y is
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- (5x^2 - 3y^2)/ xy = 11/2
5(x/y)- 3(y/x)=11/2
let x/y = a
5a-3/a= 11/2
10a^2 - 11a - 6= 0
(5a+2)(2a-3)=0
a=3/2 (+ve)
hence x/y == 3/2 - 12 years agoHelpfull: Yes(4) No(0)
- x=3 and y= 2 by hit n trial...n also keping in mind that y will be less than x..
[5*(3^2)-3*(2^2)]/3*2=(45-12)/6=33/6=11/2
- 12 years agoHelpfull: Yes(0) No(1)
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