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 2 years ago
plzz help me now.......
if cosy=xcos(a+y) theprove that
dy/dx=(cos^2 (a+y))/sina
 2 years ago
plzz help me now....... if cosy=xcos(a+y) theprove that dy/dx=(cos^2 (a+y))/sina

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shivamsinha
 2 years ago
Best ResponseYou've already chosen the best response.0i jst dbtknw ...y i g8 stuck wit simple sums....:(

dumbcow
 2 years ago
Best ResponseYou've already chosen the best response.1using implicit differentiation: \[\frac{dy}{dx} = \frac{\cos(a+y)}{x \sin(a+y)\sin(y)}\]

dumbcow
 2 years ago
Best ResponseYou've already chosen the best response.1then im guessing use sum of angles formula

dumbcow
 2 years ago
Best ResponseYou've already chosen the best response.1sin(a+y) = sin(a)cos(y) + sin(y)cos(a)

shivamsinha
 2 years ago
Best ResponseYou've already chosen the best response.0\[shouldnt ittt be \sin(y) dy/dx =\sin(a+y)x+coas(a+y)\]

dumbcow
 2 years ago
Best ResponseYou've already chosen the best response.1i don't know if im helping : there should be a dy/dx with the sin(a+y)x term

shivamsinha
 2 years ago
Best ResponseYou've already chosen the best response.0ywesssss it shud b sry it din write

shivamsinha
 2 years ago
Best ResponseYou've already chosen the best response.0pellet....yes u r write....mdumb :P

shivamsinha
 2 years ago
Best ResponseYou've already chosen the best response.0censorship even here??? :P

dumbcow
 2 years ago
Best ResponseYou've already chosen the best response.1haha from here though im not sure where to go, they don;t have an x in their answer ...i don't see how the x cancels anywhere
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