简述a+b+c+d型人格特征

申寒胞1100(a - b+c+d)(a+b+c - d) -
计星泥13594424057 ______ (a-b+c+d)(a+b+c-d)=((a+c)-(b-d))((a+c)+(b-d))=(a+c)^2-(b-d)^2

申寒胞1100(a+b+c–d)(a+b–c+d) 求解答!谢谢! -
计星泥13594424057 ______ (a+b+c–d)(a+b–c+d) =〔(a+b)+(c-d)〕〔(a+b)-(c-d)〕 =(a+b)²-(c-d)² =a²+2ab+b²-(c²-2cd+d²) =a²+2ab+b²-c²+2cd-d²

申寒胞1100a - b+c - d =a - ( ); =a+( ); =(a+c) - ( ); =(a - d) - () -
计星泥13594424057 ______ a-(b-c+d) a+(-b+c-d) (a+c)-(b+d) (a-d)-(b-c)

申寒胞1100a+b+c+d=0则(a+b+c)(b+c+d)(c+d+a)+abd=? -
计星泥13594424057 ______[答案] 等于0 a+b+c= -d b+c+d= -a c+d+a= -b 所以 (a+b+c)(b+c+d)(c+d+a)+abd =(-d)*(-a)*(-b)+abd=(-abd) + abd = 0

申寒胞1100(a+d+c - d)(a - b+c+d)=?要过程 -
计星泥13594424057 ______ 解: (a+b+c-d)(a-b+c+d) =[(a+c)+(b-d)][(a+c)-(b-d)] =(a+c)²-(b-d)² =a²+c²-2ac-b²-d²+2bd

申寒胞1100(a+b+c+d)^2 -
计星泥13594424057 ______[答案] 原式=(a+b+c+d)²=[(a+b)+(c+d)]²=(a+b)²+(c+d)²+2(a+b)(c+d)=a²+b²+2ab+c²+d²+2cd+2(ac+ad+bc+bd)=a²+b²+c²+d²+2ab+2cd+2ac+2ad+2bc+2bd

申寒胞1100a.b.c.d,abcd=9,a+b+c+d=多少 a.b.c.d,abcd=9,a+b+c+d=多少 -
计星泥13594424057 ______ 因为abcd=9,1*1*1*9=9或1*1*3*3=9,所以 a+b+c+d=12或a+b+c+d=8

申寒胞1100a+b+c=63,a+c+d=71,a+b+d=68,b+c+d=65,a=(),b=(),c= -
计星泥13594424057 ______ a+b+c+d =(63+71+68+65)÷3 =89 a=89-65=24 b=89-71=18 c=89-68=21 d=89-63=26

申寒胞1100axbxcxd=2790,a+b+c+d最小是多少 -
计星泥13594424057 ______ ∵a*b*c*d=2790 2790=2*5*3*3*31 ∴2790=(2*5) * 3 * 3 * 31 a * b * c * d 即:a+b+c+d最小是 a+b+c+d=10+3+3+31=47

申寒胞1100(a - b+c - d)( - a - b+c+d)= -
计星泥13594424057 ______ (a-b+c-d)(-a-b+c+d)=(-b+c +a-d)(-b+c -(a-d))=(c-b)^2-(a-d)^2=c^2+b^2-2bc-a^2-d^2+2ad