'True' (સાચું) અથવા 'False' (ખોટું) લખો અને તમારા જવાબનું સમર્થન કરો.
પદાવલિ $(\cos^{2} 23^{\circ} - \sin^{2} 67^{\circ})$ નું મૂલ્ય ધન છે.

  • A
    True
  • B
    False
  • C
  • D

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