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prove-that-n-N-sin-nx-n-sinx-




Question Number 34672 by math khazana by abdo last updated on 09/May/18
prove that ∀n∈N   ∣sin(nx)∣≤n∣sinx∣ .
$${prove}\:{that}\:\forall{n}\in{N}\:\:\:\mid{sin}\left({nx}\right)\mid\leqslant{n}\mid{sinx}\mid\:. \\ $$

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