Thực hiện phép tính 1/(x-1)-1/(x+1)-2/(x^2+1)-4/(x^4+1)-8/(x^8+1)-16/(x^16+1)
Giải thích
Ta có: B=2x2−1−2x2+1−4x4+1−8x8+1−16x16+1=4x4−1−4x4+1−8x8+1−16x16+1=8x8−1−8x8+1−16x16+1=16x16−1−16x16+1=32x32−1
Ta có: B=2x2−1−2x2+1−4x4+1−8x8+1−16x16+1=4x4−1−4x4+1−8x8+1−16x16+1=8x8−1−8x8+1−16x16+1=16x16−1−16x16+1=32x32−1