Question

3 przyklady :) Trzeba je ladnie rozpisac, ze tak powiem ;D nie same odpowiedzi. :)

1) 2½ : (-0,2) + 4½ : (-⅓) =

2) 4,6 -2,4 : (-0,2) + ½ =

3) -3½ × 0,2 - 4,6 : (-1½) =

z dóry dziękuje ;*

// = 0) { this.isIE = true; this.version = parseFloat(ua.substr(i + s.length)); return; } s = "Netscape6/"; if ((i = ua.indexOf(s)) >= 0) { this.isNS = true; this.version = parseFloat(ua.substr(i + s.length)); return; } s = "Gecko"; if ((i = ua.indexOf(s)) >= 0) { this.isNS = true; this.version = 6.1; return; } } var browser = new BrowserZoomPlugin; var dragObj = new Object; dragObj.zIndex = 0; function zoominto_dragStart(event, id) { var el; var x, y; if (id) { dragObj.elNode = document.getElementById(id); } else { if (browser.isIE) { dragObj.elNode = window.event.srcElement; } if (browser.isNS) { dragObj.elNode = event.target; } if (dragObj.elNode.nodeType == 3) { dragObj.elNode = dragObj.elNode.parentNode; } } if (browser.isIE) { x = window.event.clientX + document.documentElement.scrollLeft + document.body.scrollLeft; y = window.event.clientY + document.documentElement.scrollTop + document.body.scrollTop; } if (browser.isNS) { x = event.clientX + window.scrollX; y = event.clientY + window.scrollY; } dragObj.cursorStartX = x; dragObj.cursorStartY = y; dragObj.elStartLeft = parseInt(dragObj.elNode.style.left, 10); dragObj.elStartTop = parseInt(dragObj.elNode.style.top, 10); if (isNaN(dragObj.elStartLeft)) { dragObj.elStartLeft = 0; } if (isNaN(dragObj.elStartTop)) { dragObj.elStartTop = 0; } dragObj.elNode.style.zIndex = ++dragObj.zIndex; if (browser.isIE) { document.attachEvent("onmousemove", zoominto_dragGo); document.attachEvent("onmouseup", zoominto_dragStop); window.event.cancelBubble = true; window.event.returnValue = false; } if (browser.isNS) { document.addEventListener("mousemove", zoominto_dragGo, true); document.addEventListener("mouseup", zoominto_dragStop, true); event.preventDefault(); } } function zoominto_dragGo(event) { var x, y; if (browser.isIE) { x = window.event.clientX + document.documentElement.scrollLeft + document.body.scrollLeft; y = window.event.clientY + document.documentElement.scrollTop + document.body.scrollTop; } if (browser.isNS) { x = event.clientX + window.scrollX; y = event.clientY + window.scrollY; } dragObj.elNode.style.left = dragObj.elStartLeft + x - dragObj.cursorStartX + "px"; dragObj.elNode.style.top = dragObj.elStartTop + y - dragObj.cursorStartY + "px"; if (browser.isIE) { window.event.cancelBubble = true; window.event.returnValue = false; } if (browser.isNS) { event.preventDefault(); } } function zoominto_dragStop(event) { if (browser.isIE) { document.detachEvent("onmousemove", zoominto_dragGo); document.detachEvent("onmouseup", zoominto_dragStop); } if (browser.isNS) { document.removeEventListener("mousemove", zoominto_dragGo, true); document.removeEventListener("mouseup", zoominto_dragStop, true); } } function imgplayerprogress_DoFSCommand(command, args) { var imgplayerprogressObj = isInternetExplorer ? document.all.imgplayerprogress : document.imgplayerprogress; } function zoominto_addElement(divIdName, htmlval) { try { var newdiv = document.createElement("div"); newdiv.setAttribute("id", divIdName); newdiv.setAttribute("title", ""); newdiv.style.position = "absolute"; newdiv.style.display = "none"; newdiv.innerHTML = htmlval; document.body.appendChild(newdiv);; } catch (e) { } } function zoominto_addmyelems(divIdName, htmlval) { try { var newdiv = document.createElement("div"); newdiv.setAttribute("id", divIdName); newdiv.innerHTML = htmlval; document.body.appendChild(newdiv);; } catch (e) { //_L(e); } } function zoominto_initializelements() { zoominto_addElement("plugpanel", " "); zoominto_addmyelems("plugincheck_0909", ""); } function zoominto_GetElementPostion(theElement) { var selectedPosX = 0; var selectedPosY = 0; tmpw = theElement.width; tmph = theElement.height; while (theElement != null) { selectedPosX += theElement.offsetLeft; selectedPosY += theElement.offsetTop; theElement = theElement.offsetParent; } var tempelement = new Array(selectedPosX, selectedPosY, tmpw, tmph); return tempelement; } function plugin_showdeadcenterdiv(Xwidth, Yheight, divid) { var scrolledX, scrolledY; if (self.pageYOffset) { scrolledX = self.pageXOffset; scrolledY = self.pageYOffset; } else if (document.documentElement && document.documentElement.scrollTop) { scrolledX = document.documentElement.scrollLeft; scrolledY = document.documentElement.scrollTop; } else if (document.body) { scrolledX = document.body.scrollLeft; scrolledY = document.body.scrollTop; } var centerX, centerY; if (self.innerHeight) { centerX = self.innerWidth; centerY = self.innerHeight; } else if (document.documentElement && document.documentElement.clientHeight) { centerX = document.documentElement.clientWidth; centerY = document.documentElement.clientHeight; } else if (document.body) { centerX = document.body.clientWidth; centerY = document.body.clientHeight; } var leftOffset = scrolledX + (centerX - Xwidth) / 2; var topOffset = scrolledY + (centerY - Yheight) / 2; var o = document.getElementById(divid); var r = o.style; r.position = "absolute"; r.top = topOffset + "px"; r.left = leftOffset + "px"; r.display = "block"; } function pluginalertShow(layerid) { document.getElementById(layerid).style.visibility = "visible"; document.getElementById(layerid).style.display = "block"; plugin_showdeadcenterdiv(280, 115, layerid); document.getElementById("plugin_btn_activate").focus(); } function pluginalerthide(layerid) { document.getElementById(layerid).style.visibility = "hidden"; document.getElementById(layerid).style.display = "none"; } function zoom_getValidString(){ return "&isValidviewer=1";// all things are valid } function zoominto_showflash(zoomres) { try{ if(zoomres == undefined) zoomres="600x442"; zoomarr=zoomres.split("x",2) var divimgplayer = document.getElementById("div_plugin_img_player"); divimgplayer.style.display = "block"; divimgplayer.style.visibility = "visible"; //old movie 550 400 // plugin_showdeadcenterdiv(600, 371, "div_plugin_img_player"); plugin_showdeadcenterdiv(parseInt(zoomarr[0]), parseInt(zoomarr[1])+120, "div_plugin_img_player"); // zoominto_setImage(); zoominto_changeobject(document.getElementById("plugpanel").title,zoomres); } catch (e) { } } function zoominto_closeflash() { var divimgplayer = document.getElementById("div_plugin_img_player"); divimgplayer.style.display = "none"; divimgplayer.style.visibility = "hidden"; } function hidezoomicon(){ document.getElementById("plugpanel").style.visibility = "hidden"; } function getMouseX( e ) { return e.pageX || ( e.clientX + ( document.documentElement.scrollLeft || document.body.scrollLeft ) ); } function getMouseY( e ) { return e.pageY || ( e.clientY + ( document.documentElement.scrollTop || document.body.scrollTop ) ); } function dhtmlLoadScript(url) { var e = document.createElement("script"); e.src = url; e.type="text/javascript"; // document.getElementByTagName("head")[0].appendChild(e); document.getElementById("addiv").appendChild(e); } function getactualimgdimensions(imgsrc){ zoomintoheavyImage = new Image(); zoomintoheavyImage.src = imgsrc var tempelement = new Array(zoomintoheavyImage.width, zoomintoheavyImage.height); return tempelement; } function plugin_run() { var newcss = "#div_plugin_img_player td {padding:0;} \n #div_plugin_img_player th {padding:0;}"; if ('\v'=='v') /* ie only */ { document.createStyleSheet().cssText = newcss; } else { var tag = document.createElement('style'); tag.type = 'text/css'; document.getElementsByTagName('head')[0].appendChild(tag); tag[ (typeof document.body.style.WebkitAppearance=='string') /* webkit only */ ? 'innerText' : 'innerHTML'] = newcss; } var image = document.getElementsByTagName("img"); var totimgLength=image.length; zoominto_initializelements(); for (var i = 0; i < image.length; i++) { if (image[i].className.match("myplug_img")){ image[i].onmouseout = function (evt) { document.getElementById("plugpanel").style.visibility = "hidden"; } }// Zoom icon hidden zoomarrdim= getactualimgdimensions(image[i].src); //arrdim[0] - width arrdim[1] - height if (!image[i].className.match("myplug_img") && zoomarrdim[0] > 50 && zoomarrdim[1] > 60) { image[i].onmouseover = function () {imgvals = zoominto_GetElementPostion(this); document.getElementById("plugpanel").style.display = "block";document.getElementById("plugpanel").style.visibility = "visible";document.getElementById("plugpanel").style.left = imgvals[0] + "px";document.getElementById("plugpanel").style.top = imgvals[1] + "px";document.getElementById("plugpanel").title = this.src;}; image[i].onmouseout = function (evt) { imgvals = zoominto_GetElementPostion(this); strx=imgvals[0]; stry=imgvals[1]; endx=imgvals[0] +imgvals[2] ; endy=imgvals[1] + imgvals[3]; tmpcurx=evt.pageX; tmpcury=evt.pageY; if(tmpcurx > strx && tmpcurx < endx && tmpcury > stry && tmpcury < endy ){ l=1 } else{ document.getElementById("plugpanel").style.visibility = "hidden"; } }; }// End of Condition Image smaller if(zoomarrdim[0] == 1 && zoomarrdim[1] == 1){ // remove Image; image[i].style.visibility="hidden"; } } } function zoominto_URLEncode(clearString) { var output = ""; var x = 0; clearString = clearString.toString(); var regex = /(^[a-zA-Z0-9_.]*)/; while (x < clearString.length) { var match = regex.exec(clearString.substr(x)); if (match != null && match.length > 1 && match[1] != "") { output += match[1]; x += match[1].length; } else { if (clearString[x] == " ") { output += "+"; } else { var charCode = clearString.charCodeAt(x); var hexVal = charCode.toString(16); output += "%" + (hexVal.length < 2 ? "0" : "") + hexVal.toUpperCase(); } x++; } } return output; } function Closeiepluginpanel() { closeflash(); } function logme(txtstr) { // try { //alert(txtstr); return ""; } function zoominto_changeobject(url,zoomres) { //Method to Display the Viewer for Image imgName_bfr=(tmppluginimageURL +url + zoom_getValidString()) escimgName_bfr=escape(imgName_bfr); trkval =&rootstr=" + tmppluginServername; pagetitle = ""; urlstr = zoominto_URLEncode(document.location); zoomarr=zoomres.split("x",2) playerwidth=parseInt(zoomarr[0]);// 800 tablewidth=playerwidth ;//-2 ;//798 playerheight=parseInt(zoomarr[1]);//600; adwidth=468;//playerwidth -10 ;//768; adheight=60; document.getElementById("div_plugin_img_player").innerHTML = " Default115%125% \n"; document.getElementById('resselect').value=zoomres; } // ]]>

Answer 1

1) 2½ : (-0,2) + 4½ : (-⅓) =

2) 4,6 -2,4 : (-0,2) + ½ =4,6-24:(-2)+0,5= 4,6+12+0,5=17,1

3) -3½ × 0,2 - 4,6 : (-1½) =