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secondary 4 | A Maths
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Date Posted: 4 years ago
Views: 283
I do bit by bit at a later time. Doing only a few later.
I will change back to e math
Ok, but I will only do a few questions each day. You can continue to post the questions on Kathy2. Taking a break now, later doing maybe two more questions and then I close session.
Decided to continue the rest another time instead
I done with this chapter I have no much a math qns to ask ready
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done
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Q5, Q6
To be fair, for Q6, the greatest distance from O is infinity, since the particle turns only at t = 16 s and then moves all the way in the same direction without ever stopping again.
To be fair, for Q6, the greatest distance from O is infinity, since the particle turns only at t = 16 s and then moves all the way in the same direction without ever stopping again.
Date Posted:
4 years ago
done
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Q7, Q8
Remember that although differentiation and integration are the more recent topics you have been doing, you must not forget the earlier topics such as the solving of exponential equations.
Remember that although differentiation and integration are the more recent topics you have been doing, you must not forget the earlier topics such as the solving of exponential equations.
Date Posted:
4 years ago
done
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Q9, Q10, Q11
Q11 (iii) is the same as "show that the function is decreasing for all values of t". This particular example is straightforward so I bypass the usage of differentiation. The differentiation way is to show that the derivative of v i.e. the derivative of 2/(2t + 3), which equals -4/(2t + 3)^2, is always negative since (2t + 3)^2 > 9 > 0 for all t > 0.
End of session.
Q11 (iii) is the same as "show that the function is decreasing for all values of t". This particular example is straightforward so I bypass the usage of differentiation. The differentiation way is to show that the derivative of v i.e. the derivative of 2/(2t + 3), which equals -4/(2t + 3)^2, is always negative since (2t + 3)^2 > 9 > 0 for all t > 0.
End of session.
Date Posted:
4 years ago
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