perplexus.info :: Shapes : Cosine cups

Cosine cups (Posted on 2020-08-07)

The plot of the equation cos(x+y)=cos(x)+cos(y) looks like a collection of infinitely many identical closed shapes.

Find the area of one of these closed shapes.

No Solution Yet Submitted by Danish Ahmed Khan

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re: If...

| Comment 2 of 7 |

(In reply to If... by Charlie)

BTW, Here's the Wolfram Alpha command to get a plot:

Plot cos(x)+cos(y)=cos(x+y), x=0 to 15, y=0 to 15

Posted by Charlie on 2020-08-08 07:35:07

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