Table 1: It shows comparison of the solutions obtained by OHAM (3.7), ADM [18], HPM [20], VIM [22], ITM [24], and VIHPM [21]. From the numerical results, it is clear that OHAM is more efficient and accurate.

Exact sol. OHAM sol. (3.7) (ADM) (HPM) (VIM) (ITM) (VIHPM) 0.0 0.00000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.1 0.099465383 0.099465383 0.2 0.195424441 0.195424441 0.3 0.28347035 0.28347035 0.4 0.358037927 0.358037927 0.5 0.412180318 0.412180318 0.6 0.437308512 0.437308512 0.7 0.422888068 0.422888068 0.8 0.356086548 0.356086548 0.9 0.221364280 0.221364280 1.0 0.0000 0.000 0.000 0.000 0.000 0.000 0.000 0.000

= exact – approximate.