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Log 3 Using the log rules, write the following in terms of p, q, and r.
a) b) c) d) e) f)
a) b) c) d) e) f) g) h) i)
Log 3 Know how to solve equations with logs Understand what a hidden quadratic is Be able to spot a hidden quadratic
Using rules to solve equations Remember, when solving equations with logs, or exponentials, you want to end up with: OR
Example: Find x Power Rule X on 1 side X as a factor Multiplication Rule Ended up with log on 1 side
Example: Find x Power Rule Change to index form Solve for X Ended up with log on 1 side
Example: Find x Power Rule Get all X on 1 side Power & Division Rule Ended up with log both sides
Example: Find x Power & Division Rule Ended up with log both sides Get rid of log on both sides, solve equation
Have a go at the exam questions
LOGS - Hidden Quadratics A hidden quadratic is one that is made from rearranging or working.
Have a go at the exam question
Exponentials - Hidden Quadratics In your exams, you might come across something like this. This is also a hidden quadratic.
Exponentials - Hidden Quadratics These will be your hardest questions on the paper. They require using the indices rules, along with many others (like logs) The hardest part is just setting it up.
Exponentials - Hidden Quadratics
Best way to identify these is if there is two powers, and one is double the other
Exponentials - Hidden Quadratics Best way to identify these is if there is two powers, and one is double the other YOU MUSTN’T FORGOT TO PROVE THE SQUARE PART!!!
Exam question time!
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Do Section 2 Next Answer in 1 minute Next Answer in 30s Next Answer in 1 minute Next Answer in 30s
Do Section 2
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