tag:blogger.com,1999:blog-7991892050140229718.comments2013-07-31T18:50:35.163-07:002013 S3-09 Maths Blogfarrellnahhttp://www.blogger.com/profile/12822697736062086588noreply@blogger.comBlogger328125tag:blogger.com,1999:blog-7991892050140229718.post-64963424241536727902013-07-31T18:50:35.163-07:002013-07-31T18:50:35.163-07:00Activity1:
a）Maximum displacement of the wave with...Activity1:<br />a）Maximum displacement of the wave with reference to the rest position.<br /><br />b) Shortest distance between 2 pts in phase<br /><br />c) Lambda of waves travels per second<br /><br />d) Particular pt in the cycle of a waveform, measured as an angle in degrees.<br /><br />e) Amplitude, wavelength, speed, period, frequency.<br /><br />Activity 2:<br />Y=3sin(X)<br />Y=sin(2X)<br />Y= sin(X-1/3pi)<br />Y=sin(X)+2Xintong Zhonghttp://www.blogger.com/profile/07278656507681523494noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-91125912437038230602013-07-21T21:55:37.276-07:002013-07-21T21:55:37.276-07:00..Isaac Ganhttp://www.blogger.com/profile/05211565827593672432noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-34436851011451737452013-07-18T18:40:11.436-07:002013-07-18T18:40:11.436-07:00Heuristic used is drawing a model to easily visual...Heuristic used is drawing a model to easily visualise the problem and understand it in a faster and better way.Lee Kai Enhttp://www.blogger.com/profile/12132999420164870155noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-23815971592097074452013-07-18T18:40:10.246-07:002013-07-18T18:40:10.246-07:00He worked backwards using the starting location an...He worked backwards using the starting location and the end point , this allowed him to find relations and create equations to solve the problem . <br />He drew a model to visualize the question and to better understand it and solve it . <br />These methods allowed him to easily apply trigonometry to solve the question . <br />MasonSim098http://www.blogger.com/profile/17904268656623339232noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-40442609248903117582013-07-18T18:39:44.118-07:002013-07-18T18:39:44.118-07:00This comment has been removed by the author.MasonSim098http://www.blogger.com/profile/17904268656623339232noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-4715968197844375242013-07-18T18:39:37.959-07:002013-07-18T18:39:37.959-07:00Firstly, analyse the question and underline the ke...Firstly, analyse the question and underline the key information.<br /><br />Secondly, make guesses of the solutions and check which are applicable.<br /><br />Thirdly, make a model of your guess, (such as superimposing a triangle)<br /><br />Lastly, use the model and information provided(angles, distance) and trigo method to solve the problem.Zi Xin Chenhttp://www.blogger.com/profile/10616114183349270022noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-60966978902032379392013-07-18T18:39:25.140-07:002013-07-18T18:39:25.140-07:00Visual presentation
Problem simplification
Model d...Visual presentation<br />Problem simplification<br />Model drawing<br />These technics are used in the solution.<br /><br />Xintong Zhonghttp://www.blogger.com/profile/07278656507681523494noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-87981470951071426172013-07-18T18:39:14.284-07:002013-07-18T18:39:14.284-07:00The heuristic used is visual representation. It is...The heuristic used is visual representation. It is used to represent the path of the ship, a triangle is used to simplify the diagram, allowing trigonometry to be applied to solve the problemTeh Howe Weehttp://www.blogger.com/profile/07910379516911398050noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-44273427797077143632013-07-18T18:39:04.694-07:002013-07-18T18:39:04.694-07:00Firstly, a diagram is drawn to allow the person do...Firstly, a diagram is drawn to allow the person doing to understand the problem.<br /><br />Next, a previous method from Trigonometry was applied to the bearing. The values were substituted and the values were found.Wee Chang Han (章瀚19）http://www.blogger.com/profile/10707406764645598420noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-42006001803850145852013-07-18T18:38:37.981-07:002013-07-18T18:38:37.981-07:00First they simplified the question and changed it ...First they simplified the question and changed it into finding the length of the triangle. Secondly they redrew a model. After that they applied the bearing knowledge and find the answer.River Yauhttp://www.blogger.com/profile/14668229838767978189noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-61494396500792024502013-07-18T18:38:33.056-07:002013-07-18T18:38:33.056-07:00The heuristics used is a combination of simplify t...The heuristics used is a combination of simplify the problem and drawing a visual representation. <br />First a right-angled triangle is drawn so that trigonometry can be used. (TOA,CAH SOH)<br />Next, the angle is found and trigo is used to find the distance.<br />ryan tznhttp://www.blogger.com/profile/03359706665764782854noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-18942294521573985702013-07-18T18:38:26.669-07:002013-07-18T18:38:26.669-07:001. The use of visual representation to get a clear...1. The use of visual representation to get a clear image of the information you can work with and the information you must find.<br />2. With the use of the diagram, identify the the type of trigonometry ratio you should use then substitute in the values.Desiree Leehttp://www.blogger.com/profile/17285500743399022341noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-90013581916120759852013-07-18T18:38:16.584-07:002013-07-18T18:38:16.584-07:00One of the heuristic used in solving the question ...One of the heuristic used in solving the question is by drawing a model. Models are drawn to represent the situation given in the question, helping the solver to better understand the question.Carissahttp://www.blogger.com/profile/07765054595951419196noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-52807197055708021622013-07-18T18:38:02.100-07:002013-07-18T18:38:02.100-07:00Drawing a model (diagram) to show where the ship i...Drawing a model (diagram) to show where the ship is.farrellnahhttp://www.blogger.com/profile/12822697736062086588noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-77287306849919010432013-07-18T18:37:44.785-07:002013-07-18T18:37:44.785-07:00The heuristic used here is simplifying the problem...The heuristic used here is simplifying the problem. For part a, they drew a triangle, then used the concept of right angle being 90 degrees, then use trigonometry. They split the problem into 3 steps and solved it accordingly.Shaun Nghttp://www.blogger.com/profile/07472085351698416501noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-38428902596436626062013-07-18T18:37:27.673-07:002013-07-18T18:37:27.673-07:00They used visual representation to make it simplif...They used visual representation to make it simplified.Thus making it easy to apply trigonometric functions to solve the problem.Isaac Ganhttp://www.blogger.com/profile/05211565827593672432noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-77316470928815244852013-07-18T18:37:27.306-07:002013-07-18T18:37:27.306-07:00The problem is first understood, and a plan is mad...The problem is first understood, and a plan is made by drawing a diagram to make things simpler to understand and visualise. <br /><br />The trigonometric functions are then identified based on what information is known, ie hypotenuse and the angle is known, the opposite and the adjacent needs to be found.<br /><br />Evaluate the math equation.<br /><br />Check for correct units and level of accuracy. (1 d.p.)Poon Jia Qihttp://www.blogger.com/profile/15007806299340194570noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-11138547415523204262013-07-18T18:36:40.940-07:002013-07-18T18:36:40.940-07:00I think the heuristics used here is simplifying th...I think the heuristics used here is simplifying the problem. They split the N30oE into North & East and solved them separately using trigo. Also, they drew a diagram to aid in their solution to the problem. <br /><br />- OwenOwen Onghttp://www.blogger.com/profile/01661609448421139681noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-48363800002970860942013-07-18T08:46:10.043-07:002013-07-18T08:46:10.043-07:00How can we apply the sine rule in the questions. C...How can we apply the sine rule in the questions. Can we use it to find the angle or the length?Desiree Leehttp://www.blogger.com/profile/17285500743399022341noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-62102410150730119462013-07-15T23:02:07.402-07:002013-07-15T23:02:07.402-07:00For the second solution, they did not assume that ...For the second solution, they did not assume that the building has no thickness.<br />Zi Xin Chenhttp://www.blogger.com/profile/10616114183349270022noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-5029133968435276152013-07-15T23:00:09.693-07:002013-07-15T23:00:09.693-07:00Perfect. Could've added that there are infinit...Perfect. Could've added that there are infinite other solutions. Assumptions are good. <333333333333333333Shaun Nghttp://www.blogger.com/profile/07472085351698416501noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-70435166132226796882013-07-15T22:58:46.247-07:002013-07-15T22:58:46.247-07:00You did not really specify assumptions. What are y...You did not really specify assumptions. What are your assumption.<br /><br />You did not specify who/what A and B are. Do they represent the 2 men?<br /><br />You can add some pictures to illustrate what you are talking about. Especially for the last assumption where you stated that there are infinite answers. Why are there infinite answers?<br /><br />Working is very concise and easy to understand.<br /><br />- Group 4 (Mason, Kai En, Crystal, Wai Kit, Farrell)farrellnahhttp://www.blogger.com/profile/12822697736062086588noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-84700956518721519082013-07-15T22:57:58.146-07:002013-07-15T22:57:58.146-07:00Detailed explanation but no visual representation....Detailed explanation but no visual representation. <br />Why is the assumption "the two men on earth" present/valid? What does gravitational field strength have to do with distance. Other than that, assumptions are very valid and good ~(^~^)~<br />Workings are clear cut and succinct. Justin Potatohttp://www.blogger.com/profile/13274437589326220102noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-66422299370977397112013-07-15T07:45:50.664-07:002013-07-15T07:45:50.664-07:00A visual representation would be much appreciation...A visual representation would be much appreciation. Please include a diagram.Nur Johari Bin Sallehhttp://www.blogger.com/profile/12038483883275572574noreply@blogger.comtag:blogger.com,1999:blog-7991892050140229718.post-85844121465941405452013-07-15T07:45:32.099-07:002013-07-15T07:45:32.099-07:00A visual representation would be much appreciation...A visual representation would be much appreciation. Please include a diagram.Nur Johari Bin Sallehhttp://www.blogger.com/profile/12038483883275572574noreply@blogger.com