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junior college 2 | H2 Maths
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Hi ! Can someone please explain why 1) equation of circle was used in answering part (i) and 2) Domain of graph is restricted to -2<= x <=2 in part (iii)? Thanks !!
Date Posted: 6 months ago
Views: 184
1) What was used is the distance formula between two points. When one of the points is a variable, like in this example,, the formula resembles the equation of the circle.
2) Sketch the path of B and you'll see the same restriction applies to B's possible x coordinate positions.
2) Sketch the path of B and you'll see the same restriction applies to B's possible x coordinate positions.
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R is the distance between A and B A is stationary B is moving in an ellipse
If you imagine the movement the distance time graph will look like sin wave
If you imagine the movement the distance time graph will look like sin wave
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