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Maths c1 help homework

hi can someone please do step by step instructions on how to do the questions i have wrong please?

thank you so much!

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Original post by kandykissesxox
hi can someone please do step by step instructions on how to do the questions i have wrong please?

thank you so much!




FullSizeRender-3.jpg504.9KB
Original post by kandykissesxox
hi can someone please do step by step instructions on how to do the questions i have wrong please?

thank you so much!


I do not mean to sound rude but - if this is homework then your teacher will surely go through the questions you cannot do
Reply 3
Avatar for james22
james22
16
To be completely blunt nobody is going to waste their time doing that. However if you have a problem with 1 or 2 specific questions we can help.
Original post by james22
To be completely blunt nobody is going to waste their time doing that. However if you have a problem with 1 or 2 specific questions we can help.


I'd like help with Q3 and Q8 please
Original post by TenOfThem
I do not mean to sound rude but - if this is homework then your teacher will surely go through the questions you cannot do


I would just like help with Q3 and 8 please
Original post by kandykissesxox
I would just like help with Q3 and 8 please


Do you know the basic rules of logs?
Original post by TenOfThem
Do you know the basic rules of logs?


yes
Original post by kandykissesxox
yes


What are you finding difficult about Q3 then?
I don't know i just cannot work it out
Original post by TenOfThem
What are you finding difficult about Q3 then?


since i joined maths late i've had to teach logs to myself thats why I'm finding it difficult
Original post by kandykissesxox
I don't know i just cannot work it out


Can you show what you have tried

How you have applied the basic rules

By basic I mean

log⁡(a)+log⁡(b)=log⁡(ab)\log(a) + \log(b) = \log(ab)

and

log⁡(a)−log⁡(b)=log⁡(ab)\log(a) - \log(b) = \log(\frac{a}{b})

and

alog⁡(b)=log⁡(ba)a\log(b) = \log(b^a)
(edited 9 years ago)
Original post by TenOfThem
Can you show what you have tried

How you have applied the basic rules

By basic I mean

log⁡(a)+log⁡(b)=log⁡(ab)\log(a) + \log(b) = \log(ab)

and

log⁡(a)−log⁡(b)=log⁡(ab)\log(a) - \log(b) = \log(\frac{a}{b})

and

alog⁡(b)=log⁡(ba)a\log(b) = \log(b^a)


would i apply the first rule?
Original post by kandykissesxox
would i apply the first rule?


Q3 requires you to apply all 3 of the rules that I gave you
Original post by TenOfThem
Q3 requires you to apply all 3 of the rules that I gave you


ok i will have a go, but what about Q8?
Original post by kandykissesxox
ok i will have a go, but what about Q8?


Same as Q3 for (a)
Reply 16
Avatar for ubisoft
ubisoft
3
log(4^3) - log5 + log15

log64 - log5 + log15

log(64/5) + log 15

...
(edited 9 years ago)
Original post by ubisoft
log(4^3) - log5 + log15

log64 - log5 + log15

log(64/5) + log 15

log(64/5 x 15) = log192


thank you, could you please help me with 6?
Reply 18
Avatar for ubisoft
ubisoft
3
Original post by kandykissesxox
thank you, could you please help me with 6?


That's hard to write on here. You just square the whole thing inside the bracket giving you log(a^2 b^6 / c^4) then split it up like before.
Original post by ubisoft
That's hard to write on here. You just square the whole thing inside the bracket giving you log(a^2 b^6 / c^4) then split it up like before.


splitting up?

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