3+3x3—9+1x3十20一20x7一3=
计算1/1X3+1/3x5十1/5X7+.+1/2009x2011
1/1x3+1/3x5+1/5x7+1/7x9+1/9x11=?
2/1x3+2/3X5+2/5x7=2/7x9+2/9x11
(2X2)/1X3+(4X4)/(3X5)+(6X6)/(5X7)+...+(20X20)/(19X21)==?
(一) 已知求sin(x)的近似值的多项式公式为:sin(x)=x-x3/3!+x5/5!-x7/7!+……+(-1)n
已知1-1/3=2/1x3,计算1/1x3+1/3x5+1/5x7+1/7x9+1/9x11=
1/1X3+1/3X5+1/5X7...1/17X19+1/19X21=
1/1x3+1/3x5+1/5x7+.+1/2009x2011=
SIN(X)=X-X3/3!+X5/5!-X7/7!+.X3代表3次方,/代表除法 用C编程啊,
已知:x1=1/2+1/3,x2=1/3+1/4,x3=x2+x1,x4=x3+x2.,x10=x9+x8,求:x7/x
负1的3次方一(1十0点5)x3分之1除以(一4)
编程求解x-x3/3*1+x5/5*2!-x7/7*3!.,x由键盘输入知道某一项小于十的五次方.