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In a straight triangle A B C comma sin to the power of 4 invisible function application A plus sin to the power of 4 invisible function application B plus sin to the power of 4 invisible function application C equals

  1. table attributes columnalign right left right left right left right left right left right left columnspacing 0em 2em 0em 2em 0em 2em 0em 2em 0em 2em 0em end attributes row cell 3 over 2 plus 2 cos invisible function application A cos invisible function application B cos invisible function application C plus 1 half cos invisible function application 2 A cos invisible function application 2 B cos invisible function application 2 C end cell row blank end table
  2. 2 cos space A cos space B cos space C plus 1 half cos space 2 A cos space 2 B cos space 2 C
  3. 2 cos invisible function application A cos invisible function application B cos invisible function application C plus 1 half cos invisible function application 2 A cos invisible function application 2 B
  4. 2 cos invisible function application A cos invisible function application B cos invisible function application C plus cos invisible function application 2 A cos invisible function application 2 B

The correct answer is: table attributes columnalign right left right left right left right left right left right left columnspacing 0em 2em 0em 2em 0em 2em 0em 2em 0em 2em 0em end attributes row cell 3 over 2 plus 2 cos invisible function application A cos invisible function application B cos invisible function application C plus 1 half cos invisible function application 2 A cos invisible function application 2 B cos invisible function application 2 C end cell row blank end table

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