prove,by mathmetical induction,that
2(2)+3(2^2)+4(2^3)+.......(n+1)(2^n)=n(2^n+1)for all possitive integer n
PART B:
show that
1(2)+2(2^2)+3(2^3)+.......+98(2^98)=97(2^99)+2
請列詳細step同埋解解第2條係做d咩..感激不盡丫
更新1:
(2^n+1)
更新2:
(2^n+1) ---呢個係指2的n+1次方