log 3 x+3 x-1=1

跪下求婚

4月 16, 2013

蔡若藍

kuso

SOLUTION: 1.(5x+2)(5x-2)-(x+3)^2 my answer is (5x+2)(5x-2)=5x^2-2^2=25x-4 -(x+3)^2 = -x2+x*2*3+32= -兒子和爸爸正在看電視，忽然男主角跪下向女主角求婚。兒子很好奇的問爸爸：「爸爸，你向媽媽求婚的時候有沒有跪下？」爸爸：「沒有。」兒子：「為什麼？」 爸爸：「你媽說以後跪的機會多得是！」 Question 523980: 1.(5x+2)(5x-2)-(x+3)^2 my answer is (5x+2)(5x-2)=5x^2-2^2=25x-4-(x+3)^2 = -x2+x*2*3+32= -x2+6x+9-x2+6x+9+25x-4=-x2+31x+5. 2.solving Y=2x+1 Y=3x-1 when i do that with the calculater i get diffrent result then when solve it with algebraic ....

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別叫我爸

4月 16, 2013

王采安

kuso

SOLUTION: I am so confused with this. Please help. Graph y=log(base 3)(x+2)+1兒子戰戰兢兢地回到家：「爸，今天考試只得了60分。」爸爸很生氣：「下次再考低了，就別叫我爸！」第二天兒子回來了：「對不起，哥！」You can put this solution on YOUR website! Graph y=log3(x+2)+1 ----Identify the Domain: Solve x+2 > 0 x > -2 is the domain-----y = [log3(x+2)] + 1Vertical asymptote at x = -2-----x-intercept: Let y = 0 Then [log3(x+2)] + 1 = 0---[log3(x+2)] = -1...

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約會遲到

4月 16, 2013

蔡爾容

kuso

calculus - Integral $\int_{-1}^1\frac1x\sqrt{\frac{1+x}{1-x}}\ln\left(\f一個男士跟女友約會遲到了。女友疾言厲色道：「像你這種不守時的男人，只有狗才會愛你～」男士說：「我去銀行辦理事情，剛剛繼承了兩千萬的遺產。」女友馬上學狗叫：「汪汪！汪汪！」 NEW ANSWER. I found yet another way of solving this problem. My new solution does not use contour integration, and is based on the following observation: for $|z| \leq 1$, $$ - \int_{-1}^{1} \frac{1}{x} \sqrt{\frac{1+x}{1-x}} \log(...

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史特龍

4月 16, 2013

小安

kuso

virtuallyMath.com: Solving log base 2 (x+1)+log base 2 (x-1)=3 - YouTube有一天小新問爸爸 : 「爸，生氣、憤怒、抓狂以及哭笑不得有什麼不同 ? 爸爸說 : 「我做個實驗給你看，就容易懂了。」 於是他開翻電話簿，隨便找一個姓林的電話號碼， 便撥了電話過去，電話接通爸爸按擴音鍵讓小新聽清楚 爸爸 : 「請問史特龍在嗎 ? 」 對方 : 「你打錯了 ! 」 爸爸 : 「少來了In this video you learn how to solve a logarithmic equation. This kind of equation is solved in a similar way most of the time by applying a basic rule of logarithms, and then applying the concept of a base. Visit www.virtuallymath.com/demosession2/ To Ge...

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鼻好了沒有

4月 16, 2013

郭靖萍

kuso

vba - Shorthand for x=x+1? - Stack OverflowA:李準,鼻好了沒有?Ｂ：準備好了!A:不是!我是問你的鼻子好了沒有?Sub btn1_Click() Static value As Integer value = value + 1 MsgBox value End Sub I swear when I was taking a VB.net course in college there was a shorter way to tell a variable to add '' to itself. Maybe x=+1. I am using Access now though instead of visual...

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幹嘛活到 85歲

5月 2, 2013

葉迎蓮

kuso

Descartes 4x^7+3x^6+x^5+2x^4-x^3+9x^2+x+1幹嘛活到 85歲? 有個65歲的老頭子，拿著全部過關的健康檢查報告，頗滿意的問醫生：「以65歲的年紀來說，已經挺不錯了吧？你覺得我可以活到85嗎？」醫生問：「我不知道 --- 你喝不喝酒、抽不抽煙、嗑不嗑藥.....？？？！！！」老先生回答：「對！除了上教堂、聖誕節偶爾喝點紅酒，20多歲後Using Descartes' Rule of Signs, determine the number of real solutions to 4x 7 + 3x 6 + x 5 + 2x 4 - x 3 + 9x 2 + x + 1 We first evaluate the possible positive roots using ƒ(x) = 4x 7 + 3x 6 + x 5 + 2x 4 - x 3 + 9x 2 + x + 1 There are 2 sign change(s ......

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