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**Quiz-7 / Re: Q7 TUT 0301**

« **on:**December 01, 2018, 03:09:51 AM »

Hello, here is my solution.

There are two critical points:

(0, 2nπ) n=0,1,2,3... and (2, nπ) n=1,3,5...

By the way, I think there is no “±” for n here.

At (0, 2nπ), it's indeterminate center or spiral point.

At (2, nπ), it's an unstable saddle point.

The graph drawn by hand is also below.

Thank you ^_^

There are two critical points:

(0, 2nπ) n=0,1,2,3... and (2, nπ) n=1,3,5...

By the way, I think there is no “±” for n here.

At (0, 2nπ), it's indeterminate center or spiral point.

At (2, nπ), it's an unstable saddle point.

The graph drawn by hand is also below.

Thank you ^_^