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Please solve question number 53 step by step.....................

Please solve question number 53 step by step..................... 

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Grade:12th pass

1 Answers

Aditya Gupta
2081 Points
4 years ago
note that it can be 1 only if y= ax^2+bx+c= a(x – alpha)(x – beta) is greater than zero.
it holds true in (1), (2), (3).
however, in (4), when a is less than 0 and x0 is less than 1 (which also implies that x0 is less than both alpha and beta), we note that y= a(x – alpha)(x – beta)= a(alpha – x)(beta – x) will be less than 0.
hence, option 4
kindly approve :)

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