div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documente-c-section-00-900-sino-ie-coso-sinhtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: 三角比と図形 - 東京出版Section 00 900 Sino iEå± cosO sin cos tanO 9 Y iEfZ tan sin450 sin 300 sin 600 cos450 cos300— COS 600 — tan450 tan300 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsusreader033viewer2022060815609399d3ba22d251095e02fahtml5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=documente-c-section-00-900-sino-ie-coso-sinhtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: 三角比と図形 - 東京出版Section 00 900 Sino iEå± cosO sin cos tanO 9 Y iEfZ tan sin450 sin 300 sin 600 cos450 cos300— COS 600 — tan450 tan300 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsusreader033viewer2022060815609399d3ba22d251095e02fahtml5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=documente-c-section-00-900-sino-ie-coso-sinhtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: 三角比と図形 - 東京出版Section 00 900 Sino iEå± cosO sin cos tanO 9 Y iEfZ tan sin450 sin 300 sin 600 cos450 cos300— COS 600 — tan450 tan300 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader033fdocumentsusreader033viewer2022060815609399d3ba22d251095e02fahtml5thumbnails3jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=4Page 4button div class=trans-imageimg...