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Q1.If `alpha` ,`beta` are the roots of ax2 + bx + c = 0 then `-1/alpha` ,`-1/beta` are the roots of 


(a) ax2 - bx + c = 0


(b) cx2 - bx + a = 0


(c) cx2 + bx + a = 0


(d) ax2 - bx - c =0


Q2. The number of real roots of the equation (x - 1)2 + (x - 2)2 + (x - 3)2 = 0 is  


Q3. If S is the set containing values of x satisfying [x]2 - 5[x]+ 6`<=` 0, where [x] denotes GIF, then S contains 


Q4. Seven people are seated in a circle. How many relative arrangement  are possible? 


Q5. In how many ways can 4 people be seated on a square table, one on each side? 


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