推 ddczx:(3/2)*2^n 09/19 14:29
→ movo11: n n n 09/19 15:27
→ movo11:( ) + ( ) + ..... .+ ( ) = (1+1)^n 09/19 15:28
→ movo11: 0 1 n 09/19 15:28
→ movo11: n n n 09/19 15:28
→ movo11:( ) - ( ) + ..+(-1)^n( ) = (1-1)^n 09/19 15:28
→ movo11: 0 1 n 09/19 15:29
→ VB2005:感謝 09/19 22:48