數學小遊戲 (已結束)

HAMAN

PrivateGump 發表於 2012-4-30 10:03
ln(2^31) = 31 * ln(2) = 31 * 0.301030 =   9.331930
ln(3^21) = 21 * ln(3) = 21 * 0.477121 = 10.019 ...

thank you for another method to find
which one is a bigger.

HAMAN

PrivateGump 發表於 2012-4-30 11:26
to determine which number (2^31) or (3^21) is bigger using a calculator is slower in fact.
see my  ...

If no my push, would you think you could no need a calculator.

PrivateGump

HAMAN 發表於 2012-4-30 11:30
If no my push, would you think you could no need a calculator.

it is my honest and humble answer that i did not need a calculator to determine which number (2^31) or (3^21) is bigger.

i only brought up the solution involving logarithm because it is an easy and convenient method to show the exact values, hence illustrating the that (2^31) < (3^21).  it takes more time than my method 2.

HAMAN

PrivateGump 發表於 2012-4-30 11:38
it is my honest and humble answer that i did not need a calculator to determine which number (2^31 ...

I'm joking.
All roads lead to Rome.
Have a nice day.

gm302

第一題 :3既21次方（10460353203）

第二題 :1

第三題 :
說了真話 :c
偷吃者    :b

第四題 :
A) 沒有分別
great

C兄

第一題 :321

第二題 :3125

第三題 :
說了真話 :C
偷吃者    :A
以上二個答對才當中

第四題 :A
如答 B 或 C 請解釋

waiking

HAMAN 發表於 2012-4-30 00:08
歡樂時光過得特別快
時間到
謝謝參與

完滿結束

辛苦晒外星人

多謝佛版贊助全中會員

ツャア

數學麻麻
支持小遊戲

諸葛恐龍

HAMAN 發表於 2012-4-28 00:56
假日前汐，有四條數學考考大家師兄弟姊妹
動動腦筋，一齊玩吓！

遲咗冇得玩添, 應該答啱三條

waiking

諸葛恐龍 發表於 2012-4-30 22:02
遲咗冇得玩添, 應該答啱三條

下次留意吓啦

藍天白雲

HAMAN 發表於 2012-4-30 11:06
剛剛相反，在數學上
A = B 必須是 B = A 才能成立 formula

小弟愚味,能否解釋一下  A=B 與 A (此符號打不出來,應是=再加左上一點,右下一點)B 兩個等式有何分別.謝謝!

HAMAN

藍天白雲 發表於 2012-5-1 07:13
小弟愚味,能否解釋一下  A=B 與 A (此符號打不出來,應是=再加左上一點,右下一點)B 兩個等式有何分別.謝謝 ...

sorry，小弟亦愚味
唔明你想問什麽
可否詳細些
謝謝