Parametric Integration

ialexxd

What am I doing wrong in this part b question? Please help.

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Reply 1

WishingChaff

At a glance it would appear you are integrating along the wrong axis. You should have something of the form:

R = \pi \int^{6}_{0} x^2 dy

Hopefully that sorts it out.

Original post by ialexxd

What am I doing wrong in this part b question? Please help.

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Reply 2

ghostwalker

Original post by ialexxd

What am I doing wrong in this part b question? Please help.

Whilst the calculation you have done is necessary, it does not correspond to the region R being rotated.

What region does it correspond to? Have at think.

Reply 3

ialexxd

Original post by WishingChaff

At a glance it would appear you are integrating along the wrong axis. You should have something of the form:

R = \pi \int^{6}_{0} x^2 dy

Hopefully that sorts it out.

Why is it x^2 dy? That's the bit I don't understand

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(edited 10 years ago)

Reply 4

ialexxd

[QUOTE=ialexxd;47121298

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Parametric Integration

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