1.

Let a = "min" {x^(2)+2x+3: x in R} and b= lim_(theta to 0) (1-cos theta)/(theta^(2)). Then sum_(r=0)^(n) a^(r ) b^(n-r) is

Answer»

`(2^(N+1)-1)/(3*2^(n))`
`(2^(n+1)+1)/(3*2^(n))`
`(4^(n+1)-1)/(3*2^(n))`
`(1)/(2)(2^(n)-1)`

ANSWER :c


Discussion

No Comment Found

Related InterviewSolutions