Volume 7, Issue 3 József Sándor On certain inequalities for hyperbolic and trigonometric functions Downloads Abstract PDF Full article PDF DOI { copied = true; setTimeout(() => copied = false, 2000) })" :aria-label="copied ? 'DOI copied' : 'Copy DOI'" :title="copied ? 'Copied' : 'Copy DOI'" > Find all available articles from these authors József Sándor Find more articles with the same keywords trigonometric functions hyperbolic functions real variable functions inverse functions inequalities Find more articles with the same subject classes 26A06 26D05 26D99