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Alternative proofs of Shafer's inequality for inverse hyperbolic tangent. (arXiv:2103.14037v1 [math.GM]) http://arxiv.org/abs/2103.14037
Alternative proofs of Shafer's inequality for inverse hyperbolic tangent. (arXiv:2103.14037v1 [math.GM]) http://arxiv.org/abs/2103.14037