Which of the following is an arithmetic sequence? A- {1,3,6,10,15,…}{1,3,6,10,15,…}, , ,

B - {−6,1,8,15,22,…}{−6,1,8,15,22,…}, , ,

C - {1,2,4,8,16,…}{1,2,4,8,16,…}, , ,

D - {64,32,16,8,4,…}

step-by-step explanation:

take it another

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.

29933333.33

step-by-step explanation: