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whats the tangent slope at this point? so hard

find the tangent slope to the curve
cos(5x-4y)-xe^(-x)=-5pi/2 at the point (5pi/2, 2pi)

i did this like 10 times, each getting a different wrong answer

can any of u guys try it and tell me what u got

October 25, 2012

6 Comments • Newest first

AwakenedSoul

its webworks
https://courses.webwork.maa.org/webwork2/lowel2185/F12-set4/2/

Reply October 25, 2012
Chema

Perhaps the textbook is the wrong one
might be a typo

Reply October 25, 2012
AwakenedSoul

i found implicit derivative myself (teacher said it was right) then plugged in the x and y, but got it wrong...
next i used wolframalpha to do implicit for me, then i plugged in the x and y, but still got it wrong

Reply October 25, 2012
Chema

[quote=ZOMGitjon]find the derivative

math pick up joke:i wish i was your derivative so i can be tangent to your slopes [/quote]
Hahahahah-*snort*

Reply October 25, 2012
ZOMGitjon

find the derivative

math pick up joke:i wish i was your derivative so i can be tangent to your slopes

Reply October 25, 2012
Chema

Make sure your calculator doesn't round up

Reply October 25, 2012