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Mathematics 13 Online
OpenStudy (anonymous):

using quotient rule differentiate y=cosx/sinx

OpenStudy (anonymous):

We've done a couple of these, so you should know the rule by now. Which step are you getting stuck at?

OpenStudy (anonymous):

the step hw to get the formula

OpenStudy (anonymous):

What do you mean how to get the formula? I've given you the formula for the quotient rule twice. (gf'-fg')/g^2

OpenStudy (anonymous):

will it be -sinx/cosx ?

OpenStudy (anonymous):

No, it won't. How did you get that?

OpenStudy (anonymous):

i jst wrote the values of cosx and sinx

OpenStudy (anonymous):

You can't just derive the top and derive the bottom, you have to use the quotient rule. It's the exact same method as the last two quotient rule problems that I have walked you through. Find f, g, f', g', and plug them into the quotient rule formula.

OpenStudy (anonymous):

that is where am havin problems hom to find the f g f' g'

OpenStudy (anonymous):

f is the numerator, g is the denominator, and you derive them to find f' and g'

OpenStudy (anonymous):

how do i derive to get f' g' since f=cosx and g=sinx

OpenStudy (anonymous):

I told you what the derivatives of those were two problems ago, when we were deriving tangent of x. I told you that you need to memorize them. Memorize them.

OpenStudy (anonymous):

are they -sinx and cosx

OpenStudy (anonymous):

will it be (sinx(-sinx)-cosx(cosx))/sin^2x nbouscal is this right?

OpenStudy (ajprincess):

ya u r right.

OpenStudy (ajprincess):

simplify this to get the final answer.

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