Comments on: A-Math: Solving Indices Equation (Involving Common Base) http://www.singaporeolevelmaths.com/2010/02/05/a-math-solving-indices-equation-involving-common-base/ Simple Tips for Better Maths Results! Wed, 19 Oct 2011 12:26:29 +0000 hourly 1 http://wordpress.org/?v=3.0.4 By: alake http://www.singaporeolevelmaths.com/2010/02/05/a-math-solving-indices-equation-involving-common-base/comment-page-1/#comment-2587 alake Mon, 03 Oct 2011 21:39:13 +0000 http://www.singaporeolevelmaths.com/?p=1791#comment-2587 x5=125*squreroot of 2 pls solve d equation x5=125*squreroot of 2 pls solve d equation

]]> By: lpo http://www.singaporeolevelmaths.com/2010/02/05/a-math-solving-indices-equation-involving-common-base/comment-page-1/#comment-2516 lpo Sun, 29 May 2011 23:33:35 +0000 http://www.singaporeolevelmaths.com/?p=1791#comment-2516 no root exist Possible derivation: d/dp(4^(p-3) 7^(q-1)) | Factor out constants: = | 7^(q-1) (d/dp(4^(p-3))) | Use the chain rule, d/dp(4^(p-3)) = ( d4^u)/( du) ( du)/( dp), where u = p-3 and ( d4^u)/( du) = 4^u log(4): = | 7^(q-1) (4^(p-3) log(4) (d/dp(p-3))) | Differentiate the sum term by term: = | 4^(p-3) 7^(q-1) log(4) (d/dp(p)+d/dp(-3)) | The derivative of -3 is zero: = | 4^(p-3) 7^(q-1) log(4) (d/dp(p)+0) | The derivative of p is 1: = | 1 4^(p-3) 7^(q-1) log(4) no root exist

Possible derivation:
d/dp(4^(p-3) 7^(q-1))
| Factor out constants:
= | 7^(q-1) (d/dp(4^(p-3)))
| Use the chain rule, d/dp(4^(p-3)) = ( d4^u)/( du) ( du)/( dp), where u = p-3 and ( d4^u)/( du) = 4^u log(4):
= | 7^(q-1) (4^(p-3) log(4) (d/dp(p-3)))
| Differentiate the sum term by term:
= | 4^(p-3) 7^(q-1) log(4) (d/dp(p)+d/dp(-3))
| The derivative of -3 is zero:
= | 4^(p-3) 7^(q-1) log(4) (d/dp(p)+0)
| The derivative of p is 1:
= | 1 4^(p-3) 7^(q-1) log(4)

]]> By: Anon http://www.singaporeolevelmaths.com/2010/02/05/a-math-solving-indices-equation-involving-common-base/comment-page-1/#comment-2457 Anon Fri, 01 Apr 2011 08:47:20 +0000 http://www.singaporeolevelmaths.com/?p=1791#comment-2457 wow this is really helpful, thank you soo much! can someone help me with this? please 4^p-3 * 7^q-1 ? wow this is really helpful, thank you soo much!

can someone help me with this? please

4^p-3 * 7^q-1 ?

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