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For more information, please see full course syllabus of Calculus AB
For more information, please see full course syllabus of Calculus AB
Calculus AB Product Rule
Lecture Description
In this lesson, Professor John Zhu gives an introduction of the product rule. He defines the rule and gives works through example problems.
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Post by Lifan Yu on September 25, 2015
I think he's actually correct in the last example.
-8sin^2x+8cos^x = -8sin^2x-8cos^2x+16cos^x = -8+16cos^x. (Using pythagorean identity)
All the other terms match up.
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Post by John Zhu on August 12, 2013
There is definitely a mistake in there. Final answer is a bit long winded, but here it is:
30x^4-2x^3cos(x)+18x^2sin(x)-48xcos(x)+8cos^2(x)-8sin^2(x).
Thanks for spotting the error folks, a good example of how organization and sleep the night before the test helps boost scores!
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Post by Si Jia Wen on August 10, 2013
I think he made a mistake in the last example...
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Post by Cho HyuJang on November 10, 2012
Thaz the thing i wanna ask too? how did he get it?
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Post by Steve Denton on October 7, 2012
How did he simplify that to 16cos(sq)x + . . . . - 8 ???? The first and last terms came out of nowhere to me.