div class=ts-pagebuttonPage 1button div class=ts-image a href=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5page1jpg target=_blank amp-img class=ts-thumb alt=Page 1: · tanhu = sech2 u dx Proof: d tanh u — dx dx dx Sinh u cosh u dx dx du sinhu dx du dx du du cosh u — sinhu dx cosh2 u du = sech2 u dx cosh2 u — sinh2 u dx cosh2 u cosh2 src=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 2button div class=ts-image a href=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5page2jpg target=_blank amp-img class=ts-thumb alt=Page 2: · tanhu = sech2 u dx Proof: d tanh u — dx dx dx Sinh u cosh u dx dx du sinhu dx du dx du du cosh u — sinhu dx cosh2 u du = sech2 u dx cosh2 u — sinh2 u dx cosh2 u cosh2 src=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5thumbnails2jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 3button div class=ts-image a href=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5page3jpg target=_blank amp-img class=ts-thumb alt=Page 3: · tanhu = sech2 u dx Proof: d tanh u — dx dx dx Sinh u cosh u dx dx du sinhu dx du dx du du cosh u — sinhu dx cosh2 u du = sech2 u dx cosh2 u — sinh2 u dx cosh2 u cosh2 src=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5thumbnails3jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 4button div class=ts-image a href=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5page4jpg target=_blank amp-img class=ts-thumb alt=Page 4: · tanhu = sech2 u dx Proof: d tanh u — dx dx dx Sinh u cosh u dx dx du sinhu dx du dx du du cosh u — sinhu dx cosh2 u du = sech2 u dx cosh2 u — sinh2 u dx cosh2 u cosh2 src=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5thumbnails4jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 5button div class=ts-image a href=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5page5jpg target=_blank amp-img class=ts-thumb alt=Page 5: · tanhu = sech2 u dx Proof: d tanh u — dx dx dx Sinh u cosh u dx dx du sinhu dx du dx du du cosh u — sinhu dx cosh2 u du = sech2 u dx cosh2 u — sinh2 u dx cosh2 u cosh2 src=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5thumbnails5jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 6button div class=ts-image a href=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5page6jpg target=_blank amp-img class=ts-thumb alt=Page 6: · tanhu = sech2 u dx Proof: d tanh u — dx dx dx Sinh u cosh u dx dx du sinhu dx du dx du du cosh u — sinhu dx cosh2 u du = sech2 u dx cosh2 u — sinh2 u dx cosh2 u cosh2 src=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5thumbnails6jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 7button div class=ts-image a href=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5page7jpg target=_blank amp-img class=ts-thumb alt=Page 7: · tanhu = sech2 u dx Proof: d tanh u — dx dx dx Sinh u cosh u dx dx du sinhu dx du dx du du cosh u — sinhu dx cosh2 u du = sech2 u dx cosh2 u — sinh2 u dx cosh2 u cosh2 src=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5thumbnails7jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 8button div class=ts-image a href=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5page8jpg target=_blank amp-img class=ts-thumb alt=Page 8: · tanhu = sech2 u dx Proof: d tanh u — dx dx dx Sinh u cosh u dx dx du sinhu dx du dx du du cosh u — sinhu dx cosh2 u du = sech2 u dx cosh2 u — sinh2 u dx cosh2 u cosh2 src=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5thumbnails8jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 9button div class=ts-image a href=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5page9jpg target=_blank amp-img class=ts-thumb alt=Page 9: · tanhu = sech2 u dx Proof: d tanh u — dx dx dx Sinh u cosh u dx dx du sinhu dx du dx du du cosh u — sinhu dx cosh2 u du = sech2 u dx cosh2 u — sinh2 u dx cosh2 u cosh2 src=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5thumbnails9jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 10button div class=ts-image a href=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5page10jpg target=_blank amp-img class=ts-thumb alt=Page 10: · tanhu = sech2 u dx Proof: d tanh u — dx dx dx Sinh u cosh u dx dx du sinhu dx du dx du du cosh u — sinhu dx cosh2 u du = sech2 u dx cosh2 u — sinh2 u dx cosh2 u cosh2 src=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5thumbnails10jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 11button div class=ts-image a href=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5page11jpg target=_blank amp-img class=ts-thumb alt=Page 11: · tanhu = sech2 u dx Proof: d tanh u — dx dx dx Sinh u cosh u dx dx du sinhu dx du dx du du cosh u — sinhu dx cosh2 u du = sech2 u dx cosh2 u — sinh2 u dx cosh2 u cosh2 src=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5thumbnails11jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 12button div class=ts-image a href=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5page12jpg target=_blank amp-img class=ts-thumb alt=Page 12: · tanhu = sech2 u dx Proof: d tanh u — dx dx dx Sinh u cosh u dx dx du sinhu dx du dx du du cosh u — sinhu dx cosh2 u du = sech2 u dx cosh2 u — sinh2 u dx cosh2 u cosh2 src=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5thumbnails12jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 13button div class=ts-image a href=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5page13jpg target=_blank amp-img class=ts-thumb alt=Page 13: · tanhu = sech2 u dx Proof: d tanh u — dx dx dx Sinh u cosh u dx dx du sinhu dx du dx du du cosh u — sinhu dx cosh2 u du = sech2 u dx cosh2 u — sinh2 u dx cosh2 u cosh2 src=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5thumbnails13jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 14button div class=ts-image a href=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5page14jpg target=_blank amp-img class=ts-thumb alt=Page 14: · tanhu = sech2 u dx Proof: d tanh u — dx dx dx Sinh u cosh u dx dx du sinhu dx du dx du du cosh u — sinhu dx cosh2 u du = sech2 u dx cosh2 u — sinh2 u dx cosh2 u cosh2 src=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5thumbnails14jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 15button div class=ts-image a href=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5page15jpg target=_blank amp-img class=ts-thumb alt=Page 15: · tanhu = sech2 u dx Proof: d tanh u — dx dx dx Sinh u cosh u dx dx du sinhu dx du dx du du cosh u — sinhu dx cosh2 u du = sech2 u dx cosh2 u — sinh2 u dx cosh2 u cosh2 src=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5thumbnails15jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 16button div class=ts-image a href=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5page16jpg target=_blank amp-img class=ts-thumb alt=Page 16: · tanhu = sech2 u dx Proof: d tanh u — dx dx dx Sinh u cosh u dx dx du sinhu dx du dx du du cosh u — sinhu dx cosh2 u du = sech2 u dx cosh2 u — sinh2 u dx cosh2 u cosh2 src=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5thumbnails16jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 17button div class=ts-image a href=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5page17jpg target=_blank amp-img class=ts-thumb alt=Page 17: · tanhu = sech2 u dx Proof: d tanh u — dx dx dx Sinh u cosh u dx dx du sinhu dx du dx du du cosh u — sinhu dx cosh2 u du = sech2 u dx cosh2 u — sinh2 u dx cosh2 u cosh2 src=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5thumbnails17jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 18button div class=ts-image a href=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5page18jpg target=_blank amp-img class=ts-thumb alt=Page 18: · tanhu = sech2 u dx Proof: d tanh u — dx dx dx Sinh u cosh u dx dx du sinhu dx du dx du du cosh u — sinhu dx cosh2 u du = sech2 u dx cosh2 u — sinh2 u dx cosh2 u cosh2 src=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5thumbnails18jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 19button div class=ts-image a href=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5page19jpg target=_blank amp-img class=ts-thumb alt=Page 19: · tanhu = sech2 u dx Proof: d tanh u — dx dx dx Sinh u cosh u dx dx du sinhu dx du dx du du cosh u — sinhu dx cosh2 u du = sech2 u dx cosh2 u — sinh2 u dx cosh2 u cosh2 src=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5thumbnails19jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 20button div class=ts-image a href=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5page20jpg target=_blank amp-img class=ts-thumb alt=Page 20: · tanhu = sech2 u dx Proof: d tanh u — dx dx dx Sinh u cosh u dx dx du sinhu dx du dx du du cosh u — sinhu dx cosh2 u du = sech2 u dx cosh2 u — sinh2 u dx cosh2 u cosh2 src=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5thumbnails20jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 21button div class=ts-image a href=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5page21jpg target=_blank amp-img class=ts-thumb alt=Page 21: · tanhu = sech2 u dx Proof: d tanh u — dx dx dx Sinh u cosh u dx dx du sinhu dx du dx du du cosh u — sinhu dx cosh2 u du = sech2 u dx cosh2 u — sinh2 u dx cosh2 u cosh2 src=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5thumbnails21jpg width=142 height=106 layout=responsive amp-imga divdivdiv class=ts-pagebuttonPage 22button div class=ts-image a href=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5page22jpg target=_blank amp-img class=ts-thumb alt=Page 22: · tanhu = sech2 u dx Proof: d tanh u — dx dx dx Sinh u cosh u dx dx du sinhu dx du dx du du cosh u — sinhu dx cosh2 u du = sech2 u dx cosh2 u — sinh2 u dx cosh2 u cosh2 src=https:reader039vdocumentsmxreader039viewer20220216095e67547980f4c43ad93c7176html5thumbnails22jpg width=142 height=106 layout=responsive amp-imga divdiv