Probability of only one of them selected = 1/5×2/3 +4/5×1/3 =2/15 +4/15 =6/15 =2/5
I. x2 + 24x + 143 = 0
II. y2 + 12y + 35 = 0
I. 15y2+ 4y – 4 = 0
II. 15x2+ x – 6 = 0
I. 6y2- 17y + 12 = 0
II. 15x2- 38x + 24 = 0
I. x2 – 18x + 81 = 0
II. y2 – 3y - 28 = 0
The equation x2 – px – 60 = 0, has two roots ‘a’ and ‘b’ such that (a – b) = 17 and p > 0. If a series starts with ‘p’ such...
The roots of the equations x2 + 16x + 63 = 0
If α, β are the roots of the equation x² – px + q = 0, then the value of α2+β2+2αβ is
...I. 6x² - 23x + 7 = 0
II. 6y² - 29y + 9 = 0
I. 3x² - 22x + 40 = 0
II. 2y² - 19y + 44 = 0
I. 35x² - 46x – 16 = 0
II. 35y² - 116y + 96 = 0
