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junior college 1 | H2 Maths
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Help please thank you!
Date Posted: 5 years ago
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Good afternoon Elaine! Here are my workings for the proving part.
Date Posted:
5 years ago
Thank you!
Thank you
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The calculation part
Date Posted:
5 years ago
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To solve these kinds of questions, we first express one variable in terms of the other variable and a constant (if there is in this case)
We can substitute it back into the original equation and simplify it to show the expression given is correct.
We can substitute it back into the original equation and simplify it to show the expression given is correct.
Date Posted:
5 years ago
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We use differentiate to find the max/min. Take note that we have to prove that it is a maximum or minimum using the 1st derivative test (which you can “fake” by drawing the table since you know there is only one value) or by using the second derivative test.
Date Posted:
5 years ago
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