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The solution of the differential equation cos x cos y dx +
sin x sin y dy = 0 is
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Answer / rajasekar
(1) tan x = c
(2) sec x ? sec y = c
(3) sin x = c cos y
(4) cos x = c sin y
| Is This Answer Correct ? | 27 Yes | 8 No |
Answer / yasheen shahi
divide by SINx*COSy throughout.
this gives
(cosx/sinx)dx+(siny/cosy)dy=0
This is nothing but the derivative of
log(sinx)-log(cosy)
| Is This Answer Correct ? | 19 Yes | 7 No |
Answer / sangeetha
cosx/sinx)dx+(siny/cosy)dy=0
This is nothing but the derivative of
log(sinx)-log(cosy)+logc
log(sinx/cosy)=logc
sinx/cosy=c
sinx=c cosy
| Is This Answer Correct ? | 13 Yes | 2 No |
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