English: Therefore, u^(′)(r) = 2re^(−αr) − αr²e^(−αr) and u^(″)(r) = 2e^(−αr) − (2αre^(−αr)) × 2 + α²r²e^(−αr).
Telugu: అందువల్ల, u^(')(r) = 2re^(−αr) − αr²e^(−αr) మరియు మీరు^(")(r) = 2e^(−α ×r) − (2' 2 + α²²²²e^(−αr).