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If x siny=3siny+4 cosy then dydx=

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By Expert Faculty of Sri Chaitanya
a
sin2y4
b
cos2y4
c
-sin2y4
d
-cos2y4
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detailed solution

Correct option is C

The given equation is
xsiny=3siny+4cosy x-3siny=4cosy
 x-3=4coty x=4coty+3 differentiate w.r.t  y
dxdy=-4cosec2y=-4sin2y dydx=-sin2y4
 

 


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