Questions asked by baller

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• Rewrite #sin^4(x)tan^2(x)# in terms of the first power of cosine?
  
• Rewrite as a sum?
  
• Use the power-reducing identities to write #sin^2xcos^2x# in terms of the first power of cosine?
  
• Rewrite as a sum: #6(sin5theta)cos2theta# ?
  
• Given #sin theta=4/5#, #theta# lies in Quadrant 2, find #cos theta/2# ?
  
• Use DeMoivre's Theorem to find the three cube roots of 1?