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  1. sin( u / 2) = sqrt( (1 - cos( u )) / 2) cos( u / 2) = sqrt( (1 + cos( u )) / 2) tan( u / 2) = sin( u /2) / cos( u /2) = sqrt...sqrt( (8/5) / 2) = sqrt( 4/5 ) = 2 / sqrt(5) = 2 * sqrt(5) / 5 sin( u /2) = 2 * sqrt(5) / 5 sqrt( (1 - 3/5) / 2) = sqrt( (2/5) / 2...

    3 Answers · Science & Mathematics · 06/08/2010

  2. u +12/ u ^2 + u +2/3u u ^3 + 12 + u ^3 +2u/3 2u^3 + 2u/3 + 12 6u^3 +2u + 36

    3 Answers · Science & Mathematics · 26/10/2007

  3. u du/(16 + u ^2) Let w = 16 + u ^2 then dw = 2u du so (1/2) dw = u du We now have (1/2) ∫ dw/w = (1/2) ln w = (1/2) ln (16 + u ^2) + C

    3 Answers · Science & Mathematics · 09/04/2011

  4. ( u +7)^2 = 2u^2 +8u +42 u ^2+14u+49=2u^2+8u+42 0= u ^2-6u-7 0=( u -7)( u +1) u -7=0 or u +1=0 u =7 or -1

    7 Answers · Science & Mathematics · 02/11/2008

  5. do u have a sense of humor?what kind is dry, black, or how would u describe your self are u confident was school hard for u what...

    1 Answers · Arts & Humanities · 15/04/2010

  6. u ^2 x^4 - u ^2 re-order (this isn't exactly necessary it just makes it easier) -1u^2 + u ^2 x^4 factor out the greatest common factor/ gcf ( u ^2) u ^2 (-1 + x...

    3 Answers · Science & Mathematics · 31/07/2010

  7. u = 4i - 2j tan( u ) = - 2/4 = - 1/2 → angle_ u = - 26.565° v = i + 3j tan(v) = 3/1 = 3 → angle_v = 71.565° angle between u and v: = 71.565 - (- 26.565) = 71.565 + 26.565 = 98.130°

    3 Answers · Science & Mathematics · 25/05/2014

  8. Given: (5u+3/4) = ( u -4/5) +11 ()s are not needed so we remove them: 5u + 3/4...4/5 + 11 - 3/4 Create a common denominator on the right hand side: 5u - u = - 16/20 + 220/20 - 15/20 Combine like terms: 4u = 189/20 ...

    1 Answers · Science & Mathematics · 25/08/2012

  9. u can call people with skype, skype to skype is free plus u can put credits its really low prices but u must be ...

    2 Answers · Consumer Electronics · 08/07/2008

  10. u = tan(x/2) 1/ u = cot(x/2) (1/ u )^2 = cot(x/2)^2 (1/ u )^2 = csc(x/2)^2 - 1 1 + (1/ u )^2 = csc(x/2)^2 (1 + u ^2) / u ^2 = csc(x/2)^2 u ^2 / (1 + u ^2) = sin(x/2)^2 u ^2 / (1 + u ^2...

    1 Answers · Science & Mathematics · 29/04/2013

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