Question

differentiate: a^4y=(x^2+a^2)^3/2

Answer 1

diff w.r.t y, a or x ?

Answer 2

differentiate y

Answer 3

ok,assuming diff y w.r.t x
first step is to take log on both sides.

Answer 4

how ?

Answer 5

\[4y*\log a=\frac{3}{2}\log(x^2+a^2)\]

Answer 6

why is it log?

Answer 7

is the question,why is it not ln ? or why did i take log altogether?

Answer 8

the second one .. ahm, is the log part of differential ?

Answer 9

actually for the 1st part,it should be ln and not log,to indicate logarithm to base e
i wanted to isolate y,thats y i took log on both sides,as u can see now,u can write y=...........
also ln is the part of differentiation
\[\frac{d}{dx}\ln f(x)=\frac{1}{f(x)}\frac{d}{dx}f(x)\]

Answer 10

then?

Answer 11

i don't know .. tsk . . dumb!