Question

यदि `x=-1` तो `1/(x^(99))+1/(x^(9))+1/(x^(97))+1/(x^(96))+1/(x^(95))+1/(x^(94))+1/x-1` का मान क्या होगा?
A. 1
B. 0
C. -2
D. -1

Answer 1

Correct Answer - C
`x=-1`
`1/(x^(99))+1/(x^(88))+1/(x^(97))+1/(x^(96))+1/(x^(95))+1/(x^(94))`
`+ 1/x-1`
`=1/((-1)^(99))+1/((-1)^(98))+1/((-1)^(97))+1/((-1)^(96))+`
`1/((-1)^(95))+1/((-1)^(94))+1/((-1))-1`
`=-1+1-1+1-1+1+1/(-1)-1=-2`