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# Presentation1

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### Presentation1

1. 1. Form 4 [simultaneous equation vs. vector] <ul><li>We use simultaneous equation when we have two unknown to solve. </li></ul><ul><li>In vector, usually we use simultaneous equation when we have to find the two constant in the two different vector. </li></ul>
2. 2. <ul><li>Example: </li></ul>Subtitude (1) into (2) Example of simultaneous equation.
3. 3. <ul><li>Substitute into (1) </li></ul>
4. 4. In the diagram, PQRS is a quadrilateral. PR and QS is a diagonal of the quadrilateral intersection at T. point u lies on PS. It is given that , , and . Given that and where m and n are constant, find the value of m and of n. Solution: Example of vector. u P T Q S R
5. 5. <ul><li>Given, </li></ul><ul><li>Substitute (2) into (1), </li></ul>We use substitute method in simultaneous equation.