Question

Compute each sum below. If applicable, write your answer as a fraction.

Answer 1

`S_1=(-1)/(2)+((-1)/(2)^{})^2+((-1)/(2)^{})^3+((-1)/(2)^{})^4+((-1)/(2)^{})^5+((-1)/(2)^{})^6`
`S_1=-(1)/(2)+(1)/(4)-(1)/(8)+(1)/(16)-(1)/(32)+(1)/(64)`
`S_1_{}=(-21)/(64)`