頂
我integration part b 計計下個分母(secx)^2+2寫錯做(secx)^2,搞到part d 無埋A分
廿四個比利2019-04-28 15:47:21
offtopic一問
alternating series test係咪證到for n > a( a is a real number)is decreasing/increasing
就可以當佢個sequence係increaseing/decreasing咁用alternating series test證佢converge?
ピピ美(中野三玖)2019-04-28 16:01:54
Let (zn) be a decreasing sequence of strictly positive numbers with lim(zn)=0. Then Summation (-1)^(n+1)*zn us convergent
廿四個比利2019-04-28 16:21:17
咁如果zn will decrease for n >4?
就咁諗結果好似係一樣
ピピ美(中野三玖)2019-04-28 16:27:31
得,但係要check埋佢limit係0
我不會捨棄希望2019-04-28 16:40:49
我想問冇reject answer 會扣幾多分
ピピ美(中野三玖)2019-04-28 17:38:29
A分囉
happynoob2019-04-28 18:00:26
對完 有72分
唔知今年有冇星
會考都無C2019-04-28 18:31:58
應該拎到唔使咁擔心
相聚離開都有時候2019-04-28 19:10:07
lnx/sqrtx個題
我volume of revolution個度唔記得左square個lnx
但第一步條式有寫pi in(y^2)dx
有無1分M分