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Mathematics 20 Online
OpenStudy (anonymous):

find the 57th derivative of y = cos(7x)

OpenStudy (freckles):

you should see a pattern try to find the first 4 derivatives

OpenStudy (chosenmatt):

^^^

OpenStudy (freckles):

when you get y' , y'', y^(3), y^(4) please let me know

OpenStudy (anonymous):

okay sorry lost internet connection -7sin(7x) -7^2cos(7x) 7^3sin(7x) 7^4cos(7x)

OpenStudy (anonymous):

so would the answer be -7^57sin(7x)?

OpenStudy (anonymous):

@freckles ?

OpenStudy (anonymous):

looks good to me!

OpenStudy (anonymous):

okay thank you :D

OpenStudy (anonymous):

well done!

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