1.

Let the cubic equation x^(3)-ax^(2)+bx-1=0 has only one real root alpha(a lt b) Statemennt -1 alpha lis between 0 and 1 because Statement 2: The value of 2cot^(-1)(coseca)-cot^(-1)(cosec a cos^(2)a)/(2) is pi if a lt 0

Answer»

`5/3`
`3/5`
`5/8`
NONE of these

ANSWER :B


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