Recent content by bengalibabu

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    Solve Questions on y=x^2 ln x and f(x) = xe^x

    hey guys...i just had 2 questions that i really needed help with, i have no clue how to even start these question, any help would be greatly appreciated, thx Question 1 Find the equation of the tangent line to the curve y = x^2 ln x at the point (1,0). the answer should be in the form y =...
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    Log Differentiation: Find dy/dx of (cosx)^sinx

    o nevermind stupid question lol. i should have converted log to ln then found the deriative.
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    Log Differentiation: Find dy/dx of (cosx)^sinx

    how could u have used natural logs to avoid that?
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    Log Differentiation: Find dy/dx of (cosx)^sinx

    isnt the derivative of log(base)x = 1/xln(base) ?
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    Log Differentiation: Find dy/dx of (cosx)^sinx

    ok. i think i got it y = (cosx)^sinx logy = log(cosx^sinx) logy=sinx(logcosx) (dy/dx)(1/(yln10)) = sinx(1/cosx(ln10) + log(cosx^cosx) (dy/dx)=[(tanx/ln10) + (log(cosx^cosx))](yln10) jus let me know if I am on the right track. thanks for your help guys.
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    Log Differentiation: Find dy/dx of (cosx)^sinx

    all i need help is in how to logarithmate it, if i understood that then i should be able to differentiate it easily
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    Log Differentiation: Find dy/dx of (cosx)^sinx

    Using log differentiation, find dy/dx, in terms of x for the following: y = (cosx)^sinx any help wud be appreciated, I am unsure of how to start this question, thanks in advance
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    Help Needed: Drawing Graph for f(x) Problem

    actually, i am unsure of this...there might be more to this than i originally thought...maybe someone else cud help u, good luck :smile:
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    Help Needed: Drawing Graph for f(x) Problem

    that looks about right, i matched up the data given and ur graph...and seems kinda accurate...one thing is that...ur f(-2) doesn't seem to be a point of inflection in ur graph its just going up... without changing direction or anything...so i think u might want to fix that
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    Calc Help: Find a, b & c Using Point of Inflection & Local Max

    thx for ur help but dexter was write...thx guys
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    Calc Help: Find a, b & c Using Point of Inflection & Local Max

    k nelson...if b=o then c=0 as well right according to the calculations...or is that wrong too?
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    Calc Help: Find a, b & c Using Point of Inflection & Local Max

    im just really being hesitant on the fact that since b=0 then c must also equal 0
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    Calc Help: Find a, b & c Using Point of Inflection & Local Max

    so is this how it is done: f(x)= ax3 + bx2 + cx 4=a(2)^3 + b2^2 + 2c 4=8a + 4b +2c 4=2(4a + 2b + c) 2=(4a + 2b + c) 0=3ax^2 + 2b^2 +c0 0=3a(4) + (4)b + c c= -12b - 4b 6ax + 2b = 0 b=-3ax b=0 f(x)= ax3 + bx2 + cx 2=(4a + 2b + c) 2=4a a=1/2
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