1 |
- <math xmlns="http://www.w3.org/1998/Math/MathML" display="block" ><mrow > <mi >k</mi> <mo class="MathClass-rel">=</mo><mo class="MathClass-op"> sin</mo><!--nolimits--> <mi >α</mi><mo class="MathClass-punc">,</mo> <mo class="MathClass-rel">|</mo><mi >k</mi><mo class="MathClass-rel">|</mo><mo class="MathClass-rel">≤</mo> <mn>1</mn></mrow></math>
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