Question paper: http://www.google.co.uk/url?sa=t&sou...jjvdsKNr4xSXyQ
can anyone please explain q 6c)? I really can't see how to eliminate t?
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Last edited by guitarmike456; 12-04-2011 at 18:16.
- 12-04-2011 18:09
Last edited by ttoby; 12-04-2011 at 18:43.
- 12-04-2011 18:38
- 12-04-2011 18:39
From sin^2+cos^2=1, you can derive 1+cot^2= cosec^2.
1/sin^2 = cosec^2
Just re-arrange the x and y parametric equations into the forms you require.