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secondary 4 | A Maths
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kathy2
Kathy2

secondary 4 chevron_right A Maths chevron_right Singapore

Thank you

Date Posted: 4 months ago
Views: 51
Eric Nicholas K
Eric Nicholas K
4 months ago
Slowly doing, still giving tuition
kathy2
Kathy2
4 months ago
Got someone downvoted you.
I give u good le
Eric Nicholas K
Eric Nicholas K
4 months ago
Oh, it doesn’t really matter to me, you can post the next question first, I will see your questions when I am ready
Eric Nicholas K
Eric Nicholas K
4 months ago
After this will be your maxima and minima, this one there is more things to remember, I summarise them here first

Stationary points —> dy/dx = 0, solve for the coordinates

Remember that dy/dx is gradient at a point, this sounds superficial but it’s important when doing the first derivative test to determine whether the stationary point is a minimum, a maximum or something called inflection.

Second derivative test is an alternative way, using an entirely different approach altogether.

All these will be seen in the next part of differentiation.
kathy2
Kathy2
4 months ago
ok
Eric Nicholas K
Eric Nicholas K
4 months ago
I will answer questions later during my tuition in the evening
kathy2
Kathy2
4 months ago
Today I had nothing to post, tomorrow I posting the new chapter
Eric Nicholas K
Eric Nicholas K
4 months ago
Ok
Eric Nicholas K
Eric Nicholas K
4 months ago
Here is a timetable guideline for the last few topics.

June: Maxima/minima,
First half of July: Differentiation for trigo, exponential and logarithm
Second half: revision, basic integration
August: Areas under graphs, integration of trigo and exponential, kinematics
kathy2
Kathy2
4 months ago
I want try finish all by end of july
kathy2
Kathy2
4 months ago
Your qns 3b is wrong ah

See 12 Answers

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Eric Nicholas K
Eric Nicholas K's answer
3852 answers (Tutor Details)
1st
Q1a

Wait, I attend to my student for a moment
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Eric Nicholas K
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Checked already. Same answer as before. This will be the form which you will be taking for the answer. The last three lines are for simplification only and it's not a must to do them.
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Eric Nicholas K
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Q1b, Q1c
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Eric Nicholas K
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Q1d, Q1e, Q1f
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Q2a to Q2f
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Eric Nicholas K
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Q3a
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Q3b
kathy2
Kathy2
4 months ago
This qns the answer wrongly
Eric Nicholas K
Eric Nicholas K
4 months ago
Found it
Eric Nicholas K
Eric Nicholas K
4 months ago
Let me try once more. If the answer is still the same, then the answer given in the book is probably too over-simplified.
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Eric Nicholas K
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Q3c, Q3d, Q3c alternative method
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Eric Nicholas K
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Q4 to Q7
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Q8
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Q9
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Q10

End of session.