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Question

The roots of the equation x2+2(a3)x+9=0 lies between -6 and 1  then [ a ] =________ , where [.] denotes greatest integer function x.



A

3

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B

6

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C

12

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D

19

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Solution

The correct option is A

6


0 , f(-6) > 0 , f(1) > 0 , -6 < α+β2 < 1   [a] = 6


Mathematics

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