• Trigonomenry
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  • Перетворіть вираз на добуток (Factorise the expression): sin3α+sin5α
    2sin4αcosα
  • Factorise the expression; cos4α-cos2α
    -2sin3αsin
  • Factorise the expression: sin6α-sin2α
    2sin2αcos4α
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