Thread: implicit differentiation help

I got a complete different answer from any of the choices, can anyone lead me to the right direction as to get an answer to this?



I ended up with xe^6x/cos(x+6y)-1/6, any help would be appreciated you thank :]

same as this one,


I ended up with e^x(x^2-2x+6)+e^x(2x-2)

for the second one, factor out, and combine like terms to get your answer

Originally Posted by tecknics

I got a complete different answer from any of the choices, can anyone lead me to the right direction as to get an answer to this?



I ended up with xe^6x/cos(x+6y)-1/6, any help would be appreciated you thank :]

same as this one,


I ended up with e^x(x^2-2x+6)+e^x(2x-2)

Outside of the in red (above) I agree with you. For the second, factor and and you'll see an answer given.

i got the second one, rather easy dunno how i missed it, but as far as the first one goes im still lost :[

Differentiating gives



so



or

Originally Posted by Danny

Differentiating gives



so



or

Yes, i got that answer excluding my previous x, but its not an option on one of the given responses could the responses given to me be incorrect?