Based on the clue 'a trigonometric function that equals sinecosine or...', what is the answer?

What is associated with: a trick no treat on halloween 2004 this teams record 21 game winning streak was snapped by the… Based on the clue 'a tricuspid insufficiency has nothing to do with t...', what is the answer? Based on the clue 'a trifle or a short piece of music', what is the answer? Based on the clue 'a trigonometric function or a placard', what is the answer? Based on the clue 'a trilogy set in alagaesia', what is the answer? Based on the clue 'a trinket bauble or other decorative embellishment', what is the answer? Based on the clue 'a trio of vision impaired rodents', what is the answer? What is associated with: a trip from new york to ireland earned douglas corrigan this nickname in 1938?