Question

Find y' if sin(x+y) = sin(x) + sin(y)

Answer 1

hi

Answer 2

hi AravindG

Answer 3

that's not true

Answer 4

LOL

Answer 5

The derivative is the following:

cos(x+y) * (1+y') = cos(x) + cos(y) * y'

Then just rearrange to isolate y':

y' * cos(x+y) + cos(x+y) = cos(x) + cos(y) * y'
y' * cos(x+y) - y' * cos(y) = cos(x) - cos(x+y)
y' [cos(x+y) - cos(y)] = cos(x) - cos(x+y)
y' = [cos(x) - cos(x+y)]/[cos(x+y) - cos(y)]

Answer 6

Also imranmeah91 is technically right...