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Differential Equations 7 Online
OpenStudy (jaweria):

Can anyone please help me with this question? Find Y prime: Y=cos^-1(2x+5).

OpenStudy (jaweria):

This is the equation: \[Y=\cos^{-1} (2x+5)\]

OpenStudy (jaweria):

This is a new math to me and the homework is due tomorrow I m stuck with these problems!!

OpenStudy (jaweria):

I got an answer but it looks weird

OpenStudy (anonymous):

where is ur answer?

OpenStudy (anonymous):

what did you get? And next time, i recommend you go to the Calculus section, not the math.

OpenStudy (jaweria):

its \[2x /\sqrt{1-4x+25}\]

OpenStudy (anonymous):

(2x+5)=cosy

OpenStudy (anonymous):

-dy/dxsiny=2

OpenStudy (anonymous):

dy/dx=-2/siny

OpenStudy (jaweria):

oh so there wont be 2x anymore

OpenStudy (anonymous):

yup correct ur error, u'll get used to the method by practicing

OpenStudy (jaweria):

hmm ok

OpenStudy (anonymous):

it's ok to make error because from them u learn, but don't get turned off because of errors and ur close in ur answer

OpenStudy (anonymous):

ur not that far

OpenStudy (jaweria):

ok i know that numerator will be 2 but under radical is that also wrong?

OpenStudy (jaweria):

i m sorry i know i am asking too many stupid questions

OpenStudy (anonymous):

no ask any qs u like there isn't a stupid question in maths

OpenStudy (jaweria):

okyyy :)

OpenStudy (anonymous):

ok let me surprise u

OpenStudy (jaweria):

alright i m waiting for my surprise

OpenStudy (anonymous):

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