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# Logs help- Mei c2 June 07 watch

1. Q6 ii.

Logx^10-2Log(x^3/4)=4Log(2x) (show that this is the case)

how did i get negged for this? -.-
2. (Original post by Davelittle)
Q6 ii.

Logx^10-2Log(x^3/4)=4Log(2x) (show that this is the case)

Remember that:

and
Be careful with the signs when you split up the logarithms
3. (Original post by joostan)
Remember that:

and
Be careful with the signs when you split up the logarithms
i tried that and ended up with 4LogX-Log16 :/

please could you try it and see if you can do it (my exam is tomorrow so i am really worried)
4. (Original post by Davelittle)
i tried that and ended up with 4LogX-Log16 :/

please could you try it and see if you can do it (my exam is tomorrow so i am really worried)
2log(x^3/4) = log(x^6/16)

so

log(x^10) - 2log(x^3/4) = log(x^10/(x^6/16)) = log(16x^4)

Can you finish it from here?
5. (Original post by davros)
2log(x^3/4) = log(x^6/16)

so

log(x^10) - 2log(x^3/4) = log(x^10/(x^6/16)) = log(16x^4)

Can you finish it from here?
Log(2x)^4

4Log(2x)

Thanks so much

p.s. i want to rep you but i already repped you recently
6. (Original post by Davelittle)
Log(2x)^4

4Log(2x)

Thanks so much

p.s. i want to rep you but i already repped you recently
no problem!

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