Sunday, January 2, 2011

Holiday Reflection #1

Quotient Rule and Product Rule?? I believe so. These are the lessons that I remember most from the second nine weeks. So let's review them.

Product Rule: (copy 1st)(derivative of 2nd)+(copy 2nd)(derivative of 1st)

Quotient Rule: (copy bottom)(derivative top)–[(copy top)(derivative bottom)]/( bottom ) ^2

PRODUCT RULE:

(2x^2+5) (3x^2-1x)
= (2x^2+5)(6x-1)-(3x^2-1x)(4x)
= 12x^2-2x^2+30x-5 - 12x^2-4x^2
= -6x^2+30x-5

QUOTIENT RULE:

x^2 + 3 / 2x
= (x^2 + 3)(2)–(2x)(2x)/(2x)^2
= 2x^2–4x+3/(2x)^2

Well that was easy! I hope that these are on EVERY test, because these problems are easy points. Just l e a r n the formulas! (:

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