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Ib maths sl logarithms laws
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Ib maths sl logarithms laws
1.
http://www.mathsbingo.com/A%20enviar/LogarithmsDetermine/LogarithmsDetermine.html Revision from previous lesson:
2.
Logarithms By 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 32 log3 9 + log3 3 = log3 27 log 100 + log 10 = log 1000 Find a general pattern for loga x+loga y
4.
Conclusion: loga ( x y ) = loga x + loga y Proof: loga x = m loga y = n ⇒ ⇒ Use index form:
5.
Exercise 4: Verify the following From worksheet: log2 64 log2 16 = log2 4 log3 81 log3 3 = log3 27 log5 3125 log5 125 = log5 25 Find a general pattern for loga x loga y
6.
Conclusion: Proof: loga x = m loga 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.
12.
13.
Solve Book page 60: Ex 1 to 3 & 6 to 10
14.
At the end of the lesson: loga ( x y ) = loga x + loga y n loga x = loga x n
15.
http://www.mathsbingo.com/A%20enviar/Logarithms%20Write%20as%20a%20single% 20logs/LogarithmsWriteSingleLogs.html
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