Ptolemy’s identity | Desmos

Expression 3: "x" Subscript, 1 , Baseline left parenthesis, "t" , right parenthesis equals "a" Subscript, 1 , Baseline cosine left parenthesis, "t" , right parenthesis plus "b" Subscript, 1 , Baseline sine left parenthesis, "t" , right parenthesis

3

Polar Form

4

Expression 9: "x" Subscript, 2 , Baseline left parenthesis, "t" , right parenthesis equals "A" Subscript, "n" , Baseline cosine left parenthesis, "t" plus "P" , right parenthesis

9

10

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