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Question

dydx=e2y,x=5y=0, then y=3,find the value of 2x.

A
e5+9
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B
e6+9
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C
e8+9
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D
e4+9
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Solution

The correct option is B e6+9
e2ydy=dx+c
e2y2=x+c
e2y=2x+c
put (x,y)=(5,0)
1=10+c c=9
e2y=2x9
2x=e2y+9
for y=3
2x=e6+9

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