Upcoming SlideShare
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Standard text messaging rates apply

# Ib maths sl logarithms laws

1,199
views

Published on

0 Likes
Statistics
Notes
• Full Name
Comment goes here.

Are you sure you want to Yes No
Your message goes here
• Be the first to comment

• Be the first to like this

Views
Total Views
1,199
On Slideshare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
6
0
Likes
0
Embeds 0
No embeds

No notes for slide

### Transcript

• 1. http://www.maths­bingo.com/A%20enviar/LogarithmsDetermine/LogarithmsDetermine.htmlRevision from previous lesson:
• 2. LogarithmsBy the end of the lesson you will be able to:• Use the definition of logarithm to prove the laws for logarithms.• Apply the laws for logarithms  to simplify expressions.
• 3. Exercise 4: Verify the following From worksheet:log2 4 + log2 8 = log2 32log3 9 + log3 3 = log3 27log 100 + log 10 = log 1000Find a general pattern for        loga x+loga y
• 4. Conclusion:loga ( x y ) = loga x  + loga  yProof:loga x = mloga y = n⇒⇒Use index form:
• 5. Exercise 4: Verify the following From worksheet:log2 64 ­ log2 16 = log2 4log3 81 ­ log3 3 = log3 27log5 3125 ­ log5 125 = log5 25Find a general pattern for        loga x ­ loga y
• 6. Conclusion:Proof:loga x = mloga y = n⇒⇒Use index form:
• 7. Exercise 4: Verify the following From worksheet:Find a general pattern for      n loga x
• 8. Conclusion:n loga  x  = loga x n   Proof:loga x = m ⇒Use index form:
• 9. Solve:log 125 + log 8 =2 log 5 + log 4 =
• 10. 3 log3 2 +log3(½) ­ log3 4=
• 11. Solve Book page 60:  Ex  1 to 3 & 6 to 10
• 12. At the end of the lesson:loga ( x y ) = loga x  + loga  yn loga  x  = loga x n
• 13. http://www.maths­bingo.com/A%20enviar/Logarithms%20Write%20as%20a%20single%20logs/LogarithmsWriteSingleLogs.html