1.

I.15x^(2) - 29x - 14 = 0""II.6y^(2) - 5y - 25 = 0

Answer»

` x gt y`
` x ge y`
` x lt y`
Relationship between x and y cannot be determined

SOLUTION :I. ` 15x^(2) - 29x - 14 = 0`
` x_(1) = (29+sqrt(841+60xx14))/30`
` = (29+41)/30 = 70/30`
` x _(2) = (29-sqrt(1681))/30`
`x_(2) = (29-41)/30 = (-12)/30`
` x = 7/3*(-2)/5`
II. ` 6Y^(2)-5y-15 = 0`
` y_(1) =(5+sqrt(25-4xx6xx - 25))/12 = (5+sqrt(625))/12 = 30/12 `
` y_(2)=(5-sqrt(25-4xx6xx - 25))/12 rArr y_(2) = (5-sqrt(625))/12 = (-20)/20`
` y = 5/2, (-5)/3`
So, relationship between x and y can't be determined.


Discussion

No Comment Found

Related InterviewSolutions