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Q.

 Number of positive integers for which (x+3)(x1)x2(x2)30 holds is

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a

2

b

1

c

3

d

4

answer is A.

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Detailed Solution

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(x+3)(x1)x2(x2)30

Sign scheme of the expression is as shown in the following figure

Question Image

 

 

 

From the sign scheme

x(,3][1,2)

 

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