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The solution of the differential equation cos x cos y dx +
sin x sin y dy = 0 is

Answer Posted / 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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