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# C4 Parametric equation Help?? Watch

1. I just can't seem to do question 4 part d, does anyone know how to do it?
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2. (Original post by underestimate)
I just can't seem to do question 4 part d, does anyone know how to do it?
Where are you getting stuck?
3. Hi, this is my working out so far,
Thank You
4. (Original post by underestimate)
I just can't seem to do question 4 part d, does anyone know how to do it?
5. (Original post by underestimate)
I just can't seem to do question 4 part d, does anyone know how to do it?
Yes. What specific issue do you have with it?
6. (Original post by TeeEm)

(Original post by Zacken)
Yes. What specific issue do you have with it?
Just posted.
7. On your second highlighted section multiply everything by (1+t^2)^0.5. Also your first highlighted section is missing the v^2 section on the denominator. If you then multiply that through by (1+t^2)^0.5 as well then when you form dy/dx you will have terms that cancel
8. (Original post by Tav_Tastic)
On your second highlighted section multiply everything by (1+t^2)^0.5. Also your first highlighted section is missing the v^2 section on the denominator. If you then multiply that through by (1+t^2)^0.5 as well then when you form dy/dx you will have terms that cancel
Thank you
9. (Original post by underestimate)
Thank you
You're welcome

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