4. Prove: "The complement of the graph G is an Eulerian graph whenever G is also an Eulerian graph of odd order and the complement of G is connected." Give a figure and details to validate the proof.

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A: The answer is given below please do upvote if you like it thank you

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Q: 22.L{tsin (-2t)} O - (s²+4)? 2s (s² +4)° 8s 4s (s?+4)

A:  Correct option is  = A Please find attachment for the details solution

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Q: 3. Write the expression (5 + 21) + (3 – 21) as a complex number in the standard form, a + bi.

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