[email protected]([email protected]+1)×[email protected]

Question

[email protected]([email protected]+1)×[email protected]

Answer 1

[email protected][email protected]@[email protected]@
[email protected][email protected]@
[email protected]=([email protected]@)/2
[email protected]([email protected]+1)*[email protected][email protected]@[email protected]@-([email protected]+1)*[email protected]@=может вам это поможет.

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